mMM^'^mm^^^^'-'' "'" g^ 1 1 ^mm^m United States Department of Commerce

l^^l l^^^l Technology Administration

National Institute of Standards and Technology

NATL INST. OF STAND & TECH R.l.C

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NIST Technical Note 1404

Thermodynamic Properties of Homogeneous

Mixtures of Nitrogen and Water from 440 to

1000 K, up to 100 IViPa and 0.8 mole fraction N2

J. S. Gallagher, J. M. H. Level! Sengers, I. M. Abdulagatov,

J. T. R. Watson, and A. Fenghour

©JOO ^Q(9

/

100

U5753

//I i\Oi\

1993
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NIST Technical Note 1404

Thermodynamic Properties of Homogeneous

Mixtures of Nitrogen and Water from 440 to

1000 K, up to 100 MPa and 0.8 moie fraction N2

J. S. Gallagher and J. M. H. Levelt Sengers

Chemical Science and Technology Laboratory

National Institute of Standards and Technology

Gaithersburg, MD 20899 USA

I. M. Abdulagatov

institute of Geothermic Problems of the Dagestan Branch of the Russian Academy of Sciences

367024, Makhachkala, Kalinina 39-A, Russia

J. T. R. Watson and A. Fenghour

National Engineering Laboratory

East Kilbride, Glasgow, G75 OQL

United Kingdom

August 1 993

/ JT \

U.S. Department of Commerce

Ronald H. Brown, Secretary

Technology Administration

Mary L. Good, Under Secretary for Technology

National Institute of Standards and Technology

Arati Prabhakar, Director
National Institute of Standards U.S. Government Printing Office For sale by the Superintendent

and Technology Washington: 1993 of Documents

Technical Note 1404 U.S. Government Printing Office

Natl. Inst. Stand. Technol. Washington, DC 20402

Tech. Note 1404

77 pages (Aug. 1993)

CODEN: NTNOEF
Thermodynamic Properties of Homogeneous Mixtures of Nitrogen and Water

from 440 to 1000 K, up to 100 MPa and 0.8 mole fraction N2

J.S. Gallagher and J.M.H. Levelt Sengers

Thennophysics Division, Chemical Science and Technology Laboratory,

National Institute of Standards and Technology, Gaithersburg MD 20899, USA

I.M. Abdulagatov

Institute of Geothermic Problems of the Dagestan Branch

of the Russian Academy of Sciences

367024, Makhachkala, Kalinina 39-A, Russia

J.T.R. Watson and A. Fenghour

National Engineering Laboratory, East Kilbride, Glasgow, G75 OQL, United Kingdom

A generalized corresponding-states model of the Helmholtz free energy for fluid mixtures,

with pure water as the reference fluid, has been used to model the solubility and

thermodynamic properties of nitrogen in water in homogeneous ststes in a wide range of

temperatures and pressures around the water critical point. The model predictions are compared with the literature data available in this range. Tabulated values of density, enthalpy,

isobaric heat capacity and fugacity coefficients are presented at selected entries of pressure

from 0.05 to 100 MPa, of temperature from 440 to 1000 K, and of nitrogen mole fractions up

to 0.8. Also presented are tables of infinite-dilution (standard- state) properties of the nitrogen

solute in the same pressure and temperature range.

Key words: corresponding states; density; enthalpy; fugacity; heat capacity; Henry's constant;

mixture; nitrogen; solubility; standard states; steam; water.

Ill

Contents

1. Introduction 1

2. Review of the Experimental Data 2

3. The Helmholtz Free Energy for the Mixture 4

3.1 Generalized Corresponding-States Model

3.2 The Parameters of the Model

4. Comparison with the Experimental Data 9

4.1 pVTx Data

4.2 Solubility Data; Henry's Constant

4.3 Excess Enthalpies

5. Tabulation of the Thermodynamic Properties 19

6. Range and Reliability of the Model 1

9

7. Conclusions 20

8. Acknowledgments 21

9. References 22

10. Appendix A: Tables 24

11. Appendix B: The FORTRAN Code for the Model Parameters 7

1

List of Tables

1. The values of the parameters in the Helmholtz free energy 25

2a-c. Experimental pVTx data and their prediction 26

3. Solubility and Henry's constant 30

4. Molar volume, enthalpy and fugacity coefficients for N^ - H^O mixtures 3

1

5. Solute properties at infinite dilution 61

List of Figures

la. pVTx: Pressure deviations versus pressure, up to 45 MPa 1 1

lb. pVTx: Pressure deviations versus pressure, up to 100 MPa 12

Ic. pVTx: Pressure deviations vs. composition, x = - 0.8 13

Id. pVTx: Pressure deviations versus temperature, 500 - 700 K 14

2. Henry's constant in linearized representation 17

3. Excess enthalpy, measurements and prediction 18
List of symbols

A molar Helmholtz free energy

^-1' ^0' ^1 constants defining C^^^ of nitrogen

C molar heat capacity

S2 solute isobaric partial molar heat capacity

H molar enthalpy

H, solute partial molar enthalpy

f scale factor for temperature

h

fugacity of component i

h scale factor for volume

J mixing parameter for temperature

k mixing parameter for volume

^^B

Boltzmann's constant

^H Henry's constant

P pressure

R molar gas constant

T absolute temperature

V molar volume

^2 solute partial molar volume

X mole fraction of nitrogen z compressibility factor pV/RT

Greek j>ymbols

e shape factor for temperature

^0' ^y, ^-pi ^VT constants in temperature shape fact(

P density

<Pi fugacity coefficient of component i

shape factor for volume

00' 0V', (pj. 0VT constants in volume shape factor ex

VI
Subscripts

i component

1 solvent

2 solute

s solute

w water

liq liquid, or the denser coexisting phase

vap vapor, or the less dense coexisting phase

Superscripts

* pure solvent ** reference value

c critical (pure fluid)

pseudocritical or related reference state (fluid mixture)

E excess mol molecular

perf perfect-gas

res residual

Vll

1. Introduction

The solubility of air constituents in water has been a topic of considerable practical interest for

a long time. As a consequence, there is a rich and accurate data-base in the temperature range

from the freezing point to the boiling point of water. For entries into the literature on this

topic, we refer to the lUPAC Solubility Series [1], as well as to the reviews by Fernandez-Prini

and Crovetto [2], and by Wilhelm et al. [3]. The emerging technology of supercritical water

oxidation (SCWO) as well as the mounting interest in water as a reaction medium [4] are

giving rise to demand for data on fugacity coefficients, density and enthalpy for systems such

as air constituents in water at temperatures and pressures near and above those of the critical

point of water, which is located at approximately 647 K and 22 MPa [5].

The phase diagram of the system water-nitrogen is of the type Ill-m in the

classification of van Konynenburg and Scott [6], just like those of other air constituents in

water, such as oxygen, argon and carbon dioxide. This implies that a gas-gas equilibrium line

emerges from the critical point of steam, moving quickly to high pressures after passing

through a minimum in temperature. This minimum is quite shallow, only a few kelvin, for the

solutes nitrogen, oxygen and argon, but deep in the case of carbon dioxide as a solute.

For the system carbon dioxide in water, we recendy developed a Helmholtz free energy

formulation for use in the water-rich phase at near-critical and supercritical conditions [7]. We

used a generalized principle of corresponding states with pure water as the reference fluid. The

model has been described in detail in a recent publication [7], to which we refer for

information and for computer codes. The model permits calculation of the critical line, phase

boundaries, and all thennodynamic properties of interest.

In applications of SCWO, the thermodynamic properties of mixtures of air constituents

and water are urgently needed. In view of the fact that the availability of data for the

oxygen-water system is extremely limited, we have decided to first develop and test a model

for the system nitrogen-water, for which five new data sets have become available in the past

decade.

We discuss the data sources in Section 2. In Secdon 3, we give a concise summary of

the thermodynamic model, describe how it was fitted to the data, and list the model

parameters.

In Section 4, we compare with the available data, and discuss the mutual agreement or disagreement of the various data sources, as well as the adequacy of the model in the various

ranges. We make some observations on the extracdon of infinite-dilution properties, in

particular the Henry constant, from experimental data.

1
In Section 6, we describe the range in which the model is valid, and estimate the accuracy in

that range. We close with some concluding remarks in Section 7. Appendix A contains the

tabular material, including the model parameters, and comparisons with available pVTx and

solubility data. We also tabulate the predicted molar volume, enthalpy, and the fugacity

coefficients of the two components in the range 440-1000 K in temperature, 0.05-100 MPa in

pressure, and 0.05-0.8 in mole fraction of nitrogen. In addition, we present a table of

infinite-dilution or standard state properties: partial molar volume, partial molar enthalpy, and

fugacity coefficient of the nitrogen solute in the same temperature and pressure range as for

the first set of tables.

2. Review of the Experimental Data

Early investigations of the phase behavior of nitrogen in near-critical and supercritical water

are those of Tsiklis and coworkers [8]. These authors measured liquid-gas and gas-gas

equilibrium in pressure-composition space at three temperatures, up to 385 C and at pressures

up to 400 MPa. These data have only been presented in graphical form, but some tabulated

values are available for four points on the critical curve. The principal data source for the high-temperature coexisting phases is the

comprehensive study of Japas and Franck [9]. These authors measured liquid-gas and gas-gas

phase separation for mixtures of thirteen different concentrations ("isopleths") between 523 and

673 K and from 20 to 270 MPa. A measured amount of a mixture of known composition was

heated isochorically in a windowed autoclave of known volume. At the transition from the

two-phase to the homogeneous state, the p-T isochore showed a change of slope. This

observation provided pressure, temperature, composition and density of one point in the liquid,

or high-density gas phase on the three-dimensional two-phase envelope. This determination

was corroborated by a direct observation of the appearance of a second phase, or of critical

opalescence. Over 60 phase boundary data were reported. In addition, at the temperature of

673 K, 65 pVx data points were obtained in the homogeneous phase, at compositions from

0.134 to 0.9 mole fraction of water. The authors claimed uncertainties on the level of ± 0.5 K

in temperature, and ± 0.1 MPa in pressure. The critical curve was constructed as the envelope

of the isopleths in p-T space. For nine points on this curve, pressure, molar volume,

temperature and composition were listed. The authors confirmed the critical line of Tsiklis and

coworkers [8], and also their finding that the gas-gas critical line has a minimum in

temperature.
For temperatures below the critical point of water, Henry's constants were estimated by

extrapolating gas solubilities measured as a function of pressure to the saturation pressure of

pure water. The authors claimed only qualitative estimates [9], given the large uncertainty of

the pressure extrapolation.

The pVTx data of Japas and Franck in the homogeneous phase have been recently

supplemented by data from two different sources. One of us, Abdulagatov, with his coworkers

[10] measured pVTx over the full composition range from 523 to 663 K and at pressures up to 3 70 MPa. The sample was confined to a 33 cm cylindrical cell of a corrosion-resistant steel

alloy, provided with a steel ball for stirring; the cell was separated from the rest of the fill and

pressure measurement system by a diaphragm-type null indicator. The volume of the cell was

determined by weighing with water, with an uncertainty of 0.1%. The volume was corrected

for temperature expansion by means of the known expansion coefficient of the alloy. Pressure

was measured by means of a dead-weight gage with a precision of 0.002 MPa. Pressures are

listed to the nearest 0.01 MPa only, so that the uncertainty of pressures below 10 MPa is more

than 0.1 %. The composition was determmined by analysis of samples taken from the cell,

with an uncertainty of ± 0.002 in mole fraction. The uncertainties of pressure and density

values are stated as ± 0.2 %, respectively, in the abstract to the paper. A total of 55 data were

taken for the system nitrogen-water, for three different isotherms and more than a dozen

different compositions.

Two of us, Watson and Fenghour, measured pVTx of nitrogen-water mixtures in a

spherical pressure vessel connected by a line of very small dead volume to a mercury-operated

gas-oil separator of novel design. The mercury level was automatically maintained at a fixed

level at the sample side. The volume of the pressure vessel was determined with 10 ppm

uncertainty, in the manner worked out by Moldover [11] for his spherical acoustic resonators.

A total of 101 pVTx data at ten nitrogen mole fractions from 0.36 to 0.94 were measured, with one isochore for each mole fraction, with temperatures from 428 to 697 K, and with pressures

up to 30 MPa. These authors claim an uncertainty in the density of less than 0.2%.

Nitrogen solubility data in water, a total of 31 points in the range of 336 to 636 K, were recently reported by Alvarez et al. [12]. These authors measured the composition of the

liquid phase as a function of the pressure increment over that of saturated pure water. The

temperature stability and precision were on the level of 0.2 K at the higher temperatures.

Pressures were measured with an uncertainty no larger than 0.2%. The nitrogen mole fraction

in the liquid phase was of the order of 10" to 10" and reported to 3 or 4
significant figures. The authors derived values of the Henry constant from their data, using

approximations based on molecular theory in order to make the various nonideality corrections

in the coexisting phases [12, 13] Wormald and Colling [14] measured the excess enthalpy of

mixing of equimolar mixtures of nitrogen and steam in a flow calorimeter of a design suitable

for supercritical aqueous mixtures. They took 74 data from 448 to 698 K, and at pressures up

to 12.6 MPa. Wormald [13]ntly reevaluated and supplemented these data, to a total of 77

pomts, and estimated their uncertainty to be on the level of ± 1.5% in H . Our model allows a check of the mutual consistency of these various data sources. The

model is directly fitted to the liquid-phase compositions in the experiments that were used to determine Henry constants, and is then used to calculate the infinite -dilution values of the

Henry constant without introducing additional approximations.

3. The Helmholtz Free Energy for the Mixture

3.1 Generalized Corresponding-States Model

The Helmholtz free energy model used here is inspired by the generalized principle of

corresponding states, as developed by Rowlinson and Watson [16], Leland and coworkers [17,

18], and Ely and coworkers [19, 20]. Our application, being geared towards mixtures with

water as the principal component, uses only one reference fluid, namely water. The NBS/>4RC

Helmholtz free energy of water and steam [21], in the dimensionless form of Kestin et al. is used as a formulation for the reference fluid [22].

A detailed description of this free energy formulation was given in a recent publication

[7]. Here, we present a brief summary of the most important relations.

All thermodynamic properties of the binary mixture of mole fraction x of solute (s, component 2) in water (w, component 1) are derived from the molar Helmholtz free energy

A(V, T, x), with V the molar volume and T the absolute temperature. The molar Helmholtz

free energy is written as the sum of a perfect-gas part and a residual part, as follows

A(V, T, x)/RT = (1-x) A'^°^(T)/RT + x a'^°Vt)/RT w s

- 1 - In V/A^ -h X In X + (1 - x) In (1 - x)

+ A^^^(V, T, x)/RT (1)
The first line represents the contributions from the intramolecular rotational and vibrational

degrees of freedom to the perfect-gas part of the Helmholtz free energy, the second line

represents the perfect-gas translational and mixing contributions, and the third line the residual,

2 1/2 or real-gas contributions [7, 16]. The symbol A represents the length (h /27rmkT) , with h

Planck's constant.

According to the principle of generalized corresponding states, the residual molar

Helmholtz free energy for a mixture with mole fraction x of solute, at temperature T and molar

volume V, is mapped onto the residual molar Helmholtz free energy of pure water, A , at a w

displaced temperature T and a displaced molar volume V , by the relation

a'^'CV, T, X) = f,A;^^(V^= V/h^, T^= T/fp (2)

with the scale factors for temperature, f , and for volume, h , being functions of V and T .

The scale factors, in turn, are related to the shape factors , , by

f (V ,T ) = (T^Vt^) (V ,T ) x^ w w X W X w w^

h (V ,T ) = (V^/V^) (V ,T ) (3) X^ W W^ ^ X w"^ ^x^ w w"^ ^

^

Here the superscript c on properties subcripted w indicates a value taken at the critical point of

pure water. On mixture properties (those with subscript x) it indicates a composition-dependent

reference curve, to be defined below. This reference curve reduces to the van der Waals

pseudocritical curve in the original two-parameter corresponding states. The functions (V , T ) and (V , T ) are shape factors [14, 18], slowly varying

X W W X w w

functions of T and V , which represent departures from the two-parameter law of

corresponding states. The shape factors 0(V , T ) and 0(V , T ) of pure nitrogen, relative to

water, are assumed to be of the form

^^w V= • + ^(v^v^ - 1) + e^(TjTl - 1) + e^^iwjwl - i)(t^^ - 1)

W^W Tw) = *()+ ^(V^v;; - 1) + ^^(TJTl - 1) + ^vT^^w/^w - 'XTyr^ - 1)

(4)
Here 0y, dr^, 0^^ and 0^, (p^, (pry and (p^ry are adjustable parameters, while ^y. is set equal to z^ /z , the ratio of the critical compressibility factors of nitrogen and water.

The shape^ factors (V , T ) and (V , T ) for the mixture of composition x, x^ w w ^x^ w w^ ^ ' mapped to T , V , are calculated from 6(V , T ) and 0(V , T ) by means of the following w w w w w w

empirical interpolation equation

e =(\ -x)^ + 2x(l -x) 0^/^ + x^ d

(P^ = (\-x) + x(p (5)

c c

Finally, it is necessary to specify the parameters V and T of the inixture of

composition x, which reduce to the van der Waals pseudocritical parameters in his

generalization of two-parameter corresponding states to mixtures. These are calculated from

critical-point values of the pure components by means of the mixture rules

V^ = (l -x)^ V^ -h2x(1-x) V^ -^x^^

X w ws s

T'^ = (l -x)^T^ +2x(l-x)T^^ +x^T'^ (6) X ^ ^ w ^ ^ ws s

The parameter T, equals the critical temperature of nitrogen, T. = 126.20 K. V, equals

Vh /(pry with Vh , the critical volume of nitrogen, equal to 3.215 dm kg' . The parameters

V , T are calculated from Lorentz-Berthelot type combining rules

ws ws Jfb

3

V^ =k[(V'^)^^^ + (V^)^^^] /2^

ws "-^ w"^ ^ s^ -" ^c ^ . ^^c ^Cjl/2

^j^ ws -' w s

where k and j are adjustable interaction parameters. In addition to the pure-component critical

parameters, which are not adjusted, the model has eight adjustable parameters, six in the shape

factors and two in the combining rules.
3.2 The Model Parameters

The model parameters of the system nitrogen-water were determined in the following

steps. For the reference fluid, water, we used the full Helmholtz free energy which is the basis

of the NBS/NRC Steam tables [21]. It was used in the dimensionless form of Kestin et al. [22].

The NBS/NRC equation is formulated on the International Practical Temperature Scale of

1968. Short of refitting this equation to the original data base transformed to the ITS-90, a task

far exceeding the scope of this work, there is no good way of correcting the formulation while

retaining consistency of the derived properties. Thus, strictly speaking, the work presented here

is on the IPTS-68 scale, which differs from ITS-90 by a at most a few tenths of a kelvin in the

present range of application. In practice, the departures of the data from the optimized model

are such that considering the present model as formulated on ITS-90 introduces little additional

error. The perfect-gas properties and the critical parameters of nitrogen were obtained from

the correlations of Stewart and Jacobsen [23] and of Jacobsen et al. [24]. They use multiparameter expressions valid over large ranges of temperature far exceeding the range of

interest here. For our application, the perfect - gas heat capacity C^^^ was obtained by fitting,

in our temperature range, the values for this quantity tabulated in Ref. 21 by a quadratic

function of temperature

cP^rf/S** = C^l -h R =

5k 5k 5k5k = a_jT /T -H a^ -H a^T/T , 400 K < T < 1000 K (8)

The coefficients a ., a^ and a, are listed in Table 1. Constants subscripted by two asterisks,

such as S and T , are reference constants used to make the formulation of the Helmholtz

free energy of steam dimensionless; they are given in Ref. 22. They show up in eqs (8) and (9)

because all ideal-gas properties of water and nitrogen are mole-averaged in dimensionless form

and converted to dimensioned units only at the last stage of calculation. Equation (8)

represents the tabulated ideal-gas heat capacities to 0.1% from 400 to 900 K and to 2% at 1000 K. Equation (8) was integrated with respect to temperature, in order to obtain the

perfect-gas part of the Helmholtz free energy
^Perf/^** = [A"^°^ - RT + In (V/A^)]/A** =

[a_j + a^ T /T)] In (T/T ) + a^ (T/T )^/2 (9)

No effort was made to define a zero point for the thermodynamic functions of pure nitrogen

(and, a fortiori, for the mixture). The absolute values of the enthalpies tabulated in this paper

have no meaning; only their differences do. The ideal-gas enthalpy difference between 300 and

800 K, according to eq. 9, agrees with that of the full expression of Jacobsen and coworkers to

better than 1 part in 20 000.

The critical parameters of nitrogen were taken from Ref. 23; they are listed in Table 1, c c and they were used to fix the constant (pr. in the shape factor for volume as z^ /z , the ratio

of the critical compressibility factors of nitrogen and water. No effort was made to represent

the region of phase coexistence of pure nitrogen, since this region is irrelevant in the present

application to mixtures rich in water at conditions in a region around the critical point of

water. The shape factors were adjusted so as to represent pVT data of nitrogen at the high

temperatures of interest here to within a few percent in density. A difficulty in this application

of the generalized corresponding states model is that the properties of nitrogen at the high

temperatures and high pressures typical of, for instance, the Japas and Franck data, are mapped

to steam states that are in part out of the range of the NBS/NRC reference equation for water

and steam. As a consequence, the representation of pure nitrogen properties, and of

nitrogen-rich states, deteriorates at pressures above 50 MPa. We do not report property values

for pressures above 50 MPa at x = 0.8 or higher.We have checked that enthalpy differences for

pure nitrogen predicted by our model agree with those reported by Jacobsen and coworkers to 2% in the worst case, in the range of 400 to 800 K, and of to 10 MPa.

After the choice of (()n., the next step was to try to fit the critical line data of Japas and

Franck [7]. The techniques used for locating the critical line and the phase boundaries are

described in Ref. 5. The parameters were varied, one or two at a time, in order to obtain a rough fit to the data. We experienced considerable difficulty. The measured critical line,

starting at the critical point of water, moves through a shallow minimum in temperature, but

the present model cannot reproduce this initial part of the critical line, and has an unphysical

maximum temperature before it moves to temperatures below the critical temperature of steam.

We have an indication that this is a feature of the model that occurs when the critical

temperatures of the two components are far apart, and that it persists even when the shape

factors are kept constant.
We did not press hard for a close representation of the critical line. Our prime interest was in

the density and enthalpy in the homogeneous region; we have found that with the present form

of the model, we could not fit this region well if we insisted on fitting the critical line. The next step was a fit to the three sets of pVTx data, those of Japas and Franck [9], of

Watson and Fenghour, and of Abdulagatov et al. [10]. We gave great emphasis to fitting the

Watson-Fenghour data. First, parameters were varied in small groups. After an acceptable

parameter set was obtained, further refinement of the parameter values was obtained by

linearizing the fitting procedure around this set, as described in Ref. 7. In the linearization

process, other properties, such as those representative of the critical line data, the solubility

data of Alvarez et al.[12], and the excess enthalpy data of Wormald and Colling [14, 15] were

included.

Excess enthalpies for mixtures at nitrogen mole fraction x were calculated by

subtracting from the model enthalpy the mole fraction-averaged values of the enthalpy of

water [12] and of the enthalpy of nitrogen, as predicted from our model. These calculations were performed at fixed temperature and pressure.

The final set of parameters for the model is listed in Table 1, Appendix A.

4. Comparison with the Experimental Data

4.1 PVTx Data

As explained in Section 2, there are three sets of PVTx data for nitrogen in water. The basis

for our model was formed principally by those of Watson and Fenghour up to 30 MPa, and

those of Abdulagatov et al. [10] up to 70 MPa. The data of Japas and Franck [9] were

principally used to direct the high-pressure part of the model. We compare the measured

pressures (well over 200 data points in this range) with the model prediction at given

temperature, molar density and composition. The measured data, and the predicted values of

the pressure, are listed in Tables 2a-c (Appendix A) for all data sources. The pressure

differences, in %, are plotted versus pressure in figures la and lb, versus nitrogen mole

fraction in figure Ic, and versus temperature in figure Id. Figure la shows the pressure

departures in the range up to 45 MPa. We note, figure la, that the fit to the Watson-Fenghour

data (Table 2a), in the range up to 30 MPa, is quite close, with a root-mean-square (rms)

departure of 0.8% in pressure. The departures from the model are however, clearly systematic.

The authors claim the uncertainty to be less than 0.2% in density, which would correspond

with a similar uncertainty in in pressure. The nns of the fit is three times larger. There is no
indication of systematic differences between the three data sets in this plot, but one should

realize that they cover different regions in pTx space. Figure lb presents the pressure

departures in % in the range up to 100 MPa for the Abdulagatov [10] and the Japas-Franck [9]

data. We did not include the Watson-Fenghour data in Fig. lb, because the resolution of this

figure is too small. The rms pressure deviation of the Abdulagatov data is 1.4 % and that of

the Japas-Franck data, which span only one isotherm, is 3.7 %. Pressure deviations paint an

unflattering picture in the high-pressure incompressible states; the root-mean-square density

departure of the Japas-Franck data is only 2.3%. In figure Ic, we note that the

Watson-Fenghour data are fitted about equally well over the composition range from x = 0.36

up to X = 0.8. The Abdulagatov data, see Table 2b and figures la and lb, are fitted without

obvious systematics, but not within their estimated uncertainty of 0.2%: the root-mean square

pressure deviation is 1.4%. One Abdulagatov point, the last point in Table I, Ref. 10, was more

than 7% out and we did not include it in this work.

The Japas and Franck data, all at 673 K, (Table 2c and figures la- Id) are reasonably

well fitted, be it not to within the claimed tolerance of 0.5 K, 0.1 MPa. They agree with the

other data sets in regions of overlap. Only in figure Ic, where the data are plotted versus composition, some systematic departures from the model are noticeable, such as the data near

X = 0.35. In the case of the data near x = 0.35, we note that they do agree with those of

Abdulagatov in the range of overlap in pressure up to 60 MPa. so that the systematics are

likely to be due to the model.

We conclude that our model has been able to fit the experimental pVTx data within a

tolerance of a few times the experimental uncertainty over the range of compositions up to 0.8

mole fraction of nitrogen, temperatures from 500 to 700 K, and pressure up to 70 MPa. The

three sets of PVTx data are in satisfactory agreement in the range of overlap, but do show

some systematic departures from the model in the composition dependence.

10
4.0

2.0

2

Q.

Q.

(0E

Q.

(0

(0

CD .f

O

-2.0 -

-4.0

1 1 1 1 1 1 1 1

o

— o — o

o o

A

A

A

# # o o

o o

o o o

o o o

-^o o

o

o

o

o

A

o

1

1

o

o

1 1 1 A 1 1 1 10 20 30

Pressure / MPa

40

Figure la. The relative departures of the experimental pressures from the fonnulation in the

pressure range up to 45 MPa. O Watson and Fenghour; O Abdulagatov et al. [10]; A Japas

and Franck [7].

11
T3

Q.

Q.

I (0o

E

Q.

CO

CO

CDE

Q.

OO

6

1

1 "

1 1 1 1

—

4

— o

—

2

o

%

o

A

o

A

A

A

IV ^

0^

<^ o

\/^ ^A A A A

2

4

o

A

A

O

o

OA

O

O A

A

A

A

•6

•ft

—

1 1 1 1 1 1

A

1 1 1 20 40 60

Pressure / MPa

80 100

Figure lb. The relative departures of the experimental densities from the formulation in the

range up to 100 MPa. O Abdulagatov et al. [10], A Japas and Franck [7]

12
T3

Q.

Q.

(0

CO

G)E

Q.

(0E

Q.

O

0.2 0.4

Mole fraction N2

Figure Ic. The relative departures of the experimental pressures from the formulation, in the

range up to 0.8 mole fraction of nitrogen. O Watson and Fenghour; O Abdulagatov et al.

[10]; A Japas and Franck [9].

13
-o

Q.

Q.

(0(0

<DE

Ql

E

Q.

O

580 620 660

Temperature / K

Figure Id. The relative departures of the experimental pressures from the formulation, plotted

as a function of temperature in the range 500-700 K. O Watson and Fenghour;

O Abdulagatov et al. [10]

14
4.2 Solubility Data

We have fitted the model to the directly measured solubility data of Alvarez et al. [10], which

represent the composition of the liquid phase at coexistence, at nitrogen mole fractions

generally below 0.01. As is evident from Table 3, Appendix A, our model fits these

compositions generally within a few percent in the range from 460 to 636 K. Alvarez et al. give no estimate of the uncertainty of their measured mole fractions; in an earlier paper [25]

from the same group, however, the reproducibility of the composition measurement was

quoted as 0.5%. Alvarez et al., in various ways, [12, 13] calculated Henry's constants from

these measured mole fractions. This calculation requires extrapolation to infinite dilution,

which these authors achieved by making corrections based on molecular theory for departures

from perfect-gas behavior in the vapor phase, and from mixture nonideality in the liquid phase.

Especially the latter correction, which is applied to the activity coefficient of the liquid, is

difficult to make, and becomes both substantial and uncertain as the critical point is approached [26]. A (classical) Helmholtz free energy model extrapolates simply to infinite

dilution even near a critical point, without the critical anomalies peculiar to activity

coefficients based on infinite-dilution reference states [26].

Henry's constant, defined as

kri = Lim ^J^2 (^^^

x=0

with ir. the fugacity, x^ (= x) the mole fraction of the solute, nitrogen, is readily obtained from

our model by calculating, at the given temperature and at a pressure slightly above the

saturation pressure of pure water, the limiting value of f^ as x^ approaches the value 0. In

practice, the limiting value is always reached for x < 10" , but we have used x = 10' to be on

the safe side. Figure 2 displays the two differently corrected sets of Henry constant data

published by Alvarez et al. [12, 13], compared with our model calculation. We have used the

linearized representation proposed by Japas and Levelt Sengers [27], and by Harvey and Levelt

Sengers [28]. This representation was proposed because theory predicts it should be

asymptotically linear near the solvent's critical point [27]. Later, Harvey et al. showed [28] that

the slope of the straight line in the representation of figure. 2, observed over the full range of

temperatures from the normal boiling point of water through the range of the original set of

Henry's constants by Alvarez et al. [12], was larger than what was expected for the asymptotic

slope. This asymptotic slope can be estimated from a variety of properties such as the

15
initial slopes of the critical line in p-x and T-x space, or the limiting slope of the distribution

coefficient or K factor [27-30]. The estimates from the critical-line slope [29] and from the

distribution coefficient [29] are included in figure 2. This figure, and also Table 3, show that our model represents the Henry constants of Alvarez et al. quite well in the range of

intermediate temperatures (the higher liquid densities). Below 440 K departures are systematic.

At the high temperatures approaching the critical point, (low densities), the model shows the

expected decline of the slope towards the asymptotic value calculated independently from the

critical-line slope and distribution coefficient [29]. Our model is very insensitive to the choice

of parameters at temperatures above 600 K, so that there is little uncertainty about the location

of the model curve. We suggest that at the high temperatures the first set of Henry's constants

of Alvarez et al. [12] may have been undercorrected, and the second set

[11] overcorrected.

Japas and Franck [7] also reported Henry constant data derived from their two-phase

measurements at saturation. They recognized the difficulty of correcting for departure from

ideality, and therefore claim no more than qualitative features of their Henry's constants. We

have therefore omitted their data from figure. 2.

4.3 Excess Enthalpies

The comparison of our model predictions with the excess enthalpies of Wormald and Colling

[14, 15] is shown in figure. 3. Note that these data were not included in the fit. From the

enthalpy calculated for the mixture of the experimental composition at given pressure and

temperature, we subtracted the mole-fraction-weighted enthalpies of pure steam and that of the

model prediction for pure nitrogen at the same pressure and temperature. We obtain a quite

satisfactory representation of these data. Since we also fit the PVTx data well in the range of

Wormald's measurements, we have established consistency between the accurate PVTx and

excess enthalpy data in the range of overlap.

16
Temperature / K

I

4500

640 620 600 500 400

i i 1 1 1

4000 — /

#

6

) _

3500 —

* » /

/ /

- —

3000

2500 — /

o/

/ —

2000

Pc

/ A

—

1500 1 1 11 20 30 40

Density / mol • dm'^

50

Figure 2. Henry's constant in the "linearized" representation of Refs 27-29. Data of Alvarez et

al. corrected for nonideality in two different ways O Ref. 12; A Ref. 13. The limiting slope

as calculated from the critical line is indicated by the short-dashed line, and that from the

distribution coefficient by the long-dashed line [28, 29].

17
2000 h

1800

, T=698.2K

A T=648.2K —-"—-1=598.2 K — -"<>"=- — T=573.2K

T=548.2K /

1 600 |- A T=498.2 K /

o T=448.2K L

1400

I

1200

:z 1000

LUX

800

600

400

200

1 r T r I I

/

7

I

I

I /

I /o/

/n / / • // y

'

/A

/

/

/A/// y ^y

I I J L 4 6 8 10

Pressure / MPa

12

Figure 3. Excess enthalpies of equimolar nitrogen in water as a function of pressure. Data

points of Wormald and Colling, Refs 12 and 13. Curves: prediction of the model.

18
5. Tabulation of the Thermodynamic Properties

The model for the Helmholtz free energy has been used to generate thermodynamic properties

in tabular form. In Table 4, Appendix A, we present values for the molar volume V, the molar

enthalpy H, and the fugacity coefficients cp, and (p^ of the two components in the

homogeneous phase, as functions of temperature, for chosen values of pressure and

composition. There are six compositions from x = 0.05 to x = 0.8. Forty pressure entries are

given, in the range from 0.05 to 100 MPa. The temperatures are in the range from 440 to 1000

K. The absolute values of the enthalpy have no special significance; only enthalpy differences

are meaningful. There are no experimental data above 700 K, and we have indicated this

boundary of experimental verification by the dashed lines in the table.

In Table 5, Appendix A, we list the infinite-dilution values or standard states for the

solute nitrogen in water for the same values of pressure and temperature as in Table 4. Table 5

includes values at the (pure-water) phase boundaries; these values are indicated in italics. We

present infinite-dilution values for the partial molar volume V^, the partial molar enthalpy H^,

the partial molar heat capacity C ^ and the fugacity coefficient (p^ of the solute.

The FORTRAN programs that were used to generate the results in Tables 2 - 5 are those listed in Ref. 7. The part of the computer program containing the input data necessary

for the present application is listed in Appendix B.

6. Range and Reliability of the Model

We have set the range limitations on the model by the following considerations. With the

application to relatively dilute aqueous mixtures in mind, and given the fact that there is only one reference fluid, pure water, we had anticipated a region of application roughly comparable

with that of the carbon dioxide-water system [7], where the upper mole fraction was 35% of

solute. The good fit to the PVTx and excess enthalpy data, even at high nitrogen mole

fractions, came as somewhat of a surprise. Since we had made no great effort to fit the model

to pure nitrogen data, we decided to define the upper limit of the composition range as x = 0.8.

Even beyond that composition, the model will give reasonable values for one-phase properties.

It is our expectation that in the range where there are data, the uncertainty in the density will

mostly be no larger than 2%. Since we predict measured excess enthalpies at temperatures near and above the critical point of steam to within a few percent, we are confident that excess

19
enthalpies in the range where the PVTx fit is accurate (pressures up to 70 MPa), will be of

comparable reliability. The temperature range has been set by the range needed in applications

envisioned for SCWO. It should be strongly emphasized that there are no experimental data for

the mixture above 700 K. Above this temperature, however, the model predictions appear

well-behaved; moreover, even at 100 MPa, the density is still in a regime that has only

moderate departures from the perfect-gas state. Nevertheless, above 700 K, our tables have no

experimental support and should therefore be considered as giving estimates rather than

verified predictions.

Contrary to the application to the carbon dioxide - water system, we have not been able

to generate an acceptable critical line or reasonable phase boundaries. The model should

therefore not be used for states near the critical line, and for calculation of phase boundaries.

By applying the model within the boundaries of Table 4, no regions of poor or unacceptable

behavior will be entered.

As a lower cut-off for the temperature, we have chosen 440 K because we have

evidence from the Henry constant data that below this temperature the model becomes

inadequate (Table 3). The shape factors have simple forms centered on the critical point of

water, and accuracy must decline at large distances from this point.

7- Conclusions

We have presented a Helmholtz free energy formulation for the thermodynamic properties of

the system nitrogen in water, for application in a large range of temperatures and pressures

around the critical point of water.

The strong features of our model are the following. Since the model uses the full Helmholtz free energy of water and steam as a reference, it is accurate in dilute aqueous

phases and can be used to obtain infinite-dilution limits or standard states of the solute. We

have relied heavily on three sets of pVTx data in the near-critical and supercritical regime that

we have proven to be mutually consistent. One of these sets is as yet unpublished. We

therefore produce densities and enthalpies that are accurate in supercritical phases. This goal is

difficult to achieve on the basis of commonly used engineering equations of the cubic type, or by existing scientific models for fluid mixtures. It is very difficult to represent the properties of

pure water with such equations and models. A particular problem in representing the

supercritical region is the very low value of the critical compressibility factor of water, z =

0.23. Few-parameter models usually have z values well over 0.3. If such models fit the

20
ritical temperature and presseure of water, densities in the supercritical regime will be 30% or more in error. There is much speculation in the literature on supercritical fluids about the possible size

of nonideality corrections in the dilute aqueous mixtures encountered in applications such as SCWO. Our model gives the most accurate estimates presently available for such systems.

The model fits the solubilities of nitrogen measured near the water vapor pressure curve

accurately. It is a trivial effort to deduce the Henry constant from a Helmhol;tz free energy

model, even at temperatures near the critical point. This is an alternative to making the large

corrections for vapor imperfections and mixture nonidealities near the water critical point by

means of approximate theoretical models.

A weakness of the present formulation is the poor location of the critical line and the

phase boundaries. We are presently investigating whether this is an inherent feature of the

model when the critical points of the two components are far apart, or whether a better choice

of parameters or of interpolation equations can cure this problem. Our experience has alerted

us to the fact that the phase behavior of generalized corresponding-states models has not been

systematically explored. In view of the many new phase features displayed by

equations-of- state of somewhat greater complexity [31] than 2- and 3-parameter cubic

equations, such an exploration seems urgently needed.

8. Acknowledgments

This work received support from the Standard Reference Program, and from NIST

Competence Funds for Supercritical Water Oxidation. Dr. J.A. Given provided valuable

criticism, and also improved the accuracy of the computer codes used to calculate the critical

line. Dr. M.L. Huber and Dr. D.F. Friend served as critical and helpful reviewers.

21
9. References

[I] lUPAC Solubility Data Series, Vol. 10, "Nitrogen and Air," Editor R. Battino, Pergamon,

Oxford, (1982).

[2] R. Fernandez-Prini and R. Crovetto, J. Phys. Chem. Ref. Data 18, 1231 (1989).

[3] E. Wilhelm, R. Battino and R.J. Wilcox, "Low-Pressure Solubility of Gases." Chemical

Reviews 27, 219(1977).

[4] See, for instance, papers 15-19 in Supercritical Fluid Science and Technology, Editors K.P.

Johnston and J.M.J. Penninger, ACS Symposium Series 406, ACS, Washington, DC 1989;

papers 24-27 in "Supercritical Fluid Engineering Science," Editors E. Kiran and J. Brennecke,

ACS Symposium Series 514, ACS, Washington, 1993; and R.W. Shaw, T.B. Brill, A. A.

Clifford, C.A. Eckert and E.U. Franck, C&E News 69, Nr 51, Dec. 23 (1992), p. 26.

[5] J.M.H. Levelt Sengers, J. Straub, K. Watanabe and P.O. Hill, J. Phys. Chem. Ref Data 14,

193 (1985).

[6] P.H. van Konynenburg and R.L. Scott, Phil. Trans. Roy. Soc. London, 298, 495 (1980).

[7] J.S. Gallagher, R. Crovetto and J.M.H. Levelt Sengers, J. Phys. Chem. Ref. Data 22, 431

(1993).

[8] D.S. Tsiklis and V.Ya. Maslennikova, Dokl. Akad. Nauk SSSR 161, 645 (1965); V.M.

Prokhorov and D.S. Tsiklis, Russ. J. Phys. Chem. 44 (8), 1173 (1970)

[9] M.L. Japas and E.U. Franck, Ber. Bunsenges. Phys. Chem. 89, 793 (1985).

[10] I.M. Abdulagatov, A.R. Bazaev and A.E. Ramazanova, Intern. J. Thermophysics 14, 231

(1993).

[II] M.R. Moldover, J.P.M. Trussler, T.J. Edwards, J.B. Mehl, and R.S. Davis, J. Res. Natl.

Bur. Stand. (U. S.) 93, 85 (1988).

[12] J. Alvarez, R. Crovetto, and R. Fernandez-Prini, Ber. Bunsenges. Phys. Chem. 92, 935

(1988).

[13] J. Alvarez and R. Femandez-Prini, Fluid Phase Equil. 66, 309 (1991).

[14] C.J. Wormald and C.N. Colling, J. Chem. Thermodynamics 15, 727 (1983).

[15] C.J. Wormald, "Excess Enthalpy Experimental Data, New and Recalculated Values, 16

Binary Systems Containing Steam," GPA report, Bristol (1992).

[16] J.S. Rowlinson and I.D. Watson, Chem. Eng. Sci. 24, 1565 (1969).

[17] J.W. Leach, RS. Chappelear and T.W. Leland, AlChE J. 14, 568 (1968).

[18] T.W. Leland and P.S. Chappelear, Ind. Eng. Fund. 60, 15 (1968).

[19] J.F. Ely and H.J.M. Hanley, NBS Tech. Note 1039 (1981); Ind. Eng. Fund. 20, 323

(1981). [TRAPP model].

22
[20] J.F. Ely and M.L. Huber, NIST Standard Reference Database, Thermophysical Properties

of Hydrocarbon Mixtures. [SUPERTRAPP model].

[21] L. Haar, J.S. Gallagher and G.S. Kell, NBS/NRC Steam Tables, Hemisphere Publishing

Corp., Washington D.C. (1984).

[22] J. Kestin, J.V. Sengers, B. Kamgar-Parsi and J.M.H. Levelt Sengers, J. Phys. Chem. Ref.

Data 13, 175 (1984).

[23] R.T. Jacobsen and R.B. Stewart, J. Phys. Chem. Ref. Data 2, 757 (1973).

[24] R.T. Jacobsen, R.B. Stewart and M. Jahangiri, J. Phys. Chem. Ref. Data 15, 735 (1986).

[25] R. Crovetto, R. Fernandez-Prini and M.L. Japas, J. Chem. Phys. 76, 1077 (1982).

[26] J.M.H. Levelt Sengers, A.H. Harvey, R. Crovetto and J.S. Gallagher, Fluid Phase

Equilibria 81, 85 (1992).

[27] M.L. Japas and J.M.H. Levelt Sengers, AlChE J. 35, 705 (1989).

[28] A.H. Harvey and J.M.H. Levelt Sengers, AIChE J. 36, 539 (1990)

[29] A.H. Harvey, R. Crovetto and J.M.H. Levelt Sengers, AIChE J. 36, 1901 (1990).

[30] J.M.H. Levelt Sengers, J. Supercrit. Fluids 4, 215 (1991).

[31] A. van Pelt, C.J. Peters and J. de Swaan Arons, J. Chem. Phys. 95, 7569 (1991).

23
APPENDIX A. Tables

Model parameters, comparisons with experimental data,

and tabulations of thermodynamic properties of mixtures of nitrogen and water.

24
Table 1

The Values of the Parameters in the Helmholtz Free Energy

Nitrogen

Critical parameters [21] Heat capacity parameters, eq. (y)

T

c 126.2 K(IPTS-68) ^-1 0.576564

P

c 3.40 MPa ^0 8.26099

^c

311 kgm"^ ^1 2.58261

** _1 1 S 1.937034 J- K ^ mol ^

Mixture

00 1.253 j 0.978

<^v

-0.125 k 1.233

0T -0.051

0VT 0.067

^ -0.012

^T 0.018

^VT -0.124

25
^(N^) T

K

0..3593 602.,47

0..3593 615..86

0..3593 629..27

0..3593 642..94

0..3593 656..21

0..3593 670..04

0..3593 683..69

0..3593 697..44

0..4358 589..02

0..4358 615..91

0..4358 629..35

0..4358 642..88

0..4358 656..59

0..4358 670..56

0..4358 684..11

0..4358 697,.87

0..5069 562..16

0.,5069 589,.20

0..5069 615,.95

0..5069 629,.39

0..5069 643,.08

0..5069 656,.71

0..5069 670,.43

0..5069 683,.88

0,.5069 697,.51

0..5606 561,.97

0,.5606 588,.99

0,.5606 615..92

0,.5606 629,.33

0,.5606 642,.93

0,.5606 656,.47

.5606 670,.10

.5606 683 .04

.5606 697,.42

.5606 706,.65

.6467 534 .71

.6467 561 .33

.6467 588 .44

.6467 615 .39

.6467 628 .75

.6467 642 .34

.6467 656 .10

.6467 670 .06

.6467 683 .69

.6467 697 .41

.6962 535 .69

.6962 562 .22

.6962 589 .32

.6962 616 .29

.6962 629 .67

.6962 643 .14

.6962 656 .72

.6962 669 .98

.6962 683 .18

.6962 697 .43

Table 2a

pVTx measurements of Watson and Fenghour

At given x, T and p, measured and calculated pressures are compared

Pcalc 100 (Pmeas-Pcalc^/P

MPa

24.6668 -2.38

25.5812 -1.78

26.4878 -1.33

27.4021 -1.01

28.2824 -0.73

29.1933 -0.50

30.0823 -0.32

30.9707 -0.17

21.2692 -1.47

22.6786 -0.72

23.3749 -0.46

24.0693 -0.26

24.7667 -0.08

25.4723 0.06

26.1524 0.14

26.8374 0.24

18.0765 -1.22

19.2456 -0.52

20.3847 -0.09

20.9511 0.06

21.5236 0.20

22.0899 0.29

22.6564 0.37

23.2081 0.42

23.7642 0.46

16.8573 -0.57

17.8751 -0.11

18.8762 0.17

19.3701 0.27

19.8682 0.36

20.3600 0.43

20.8530 0.48

21.3185 0.52

21.8333 0.56

22.1616 0.59

14.2786 -0.18

15.1174 0.13

15.9619 0.33

16.7920 0.50

17.2002 0.57

17.6132 0.61

18.0296 0.65

18.4497 0.68

18.8583 0.69

19.2673 0.72

13.5084 0.09

14.2664 0.32

15.0320 0.46

15.7872 0.61

16.1591 0.66

16.5319 0.69

16.9058 0.71

17.2703 0.73

17.6311 0.74

18.0185 0.77

26

^meas Pmeas

mol dm MPa

5..9063 24,.093

5..9018 25,.133

5,.8973 26,.140

5..8924 27,.127

5..8879 28,.078

5..8834 29,.049

5..8785 29,.986

5..8737 30,.919

4 ..8731 20..961

4..8657 22,.517

4,.8622 23,.267

4 ,.8584 24,.007

4,.8544 24,.746

4 ,.8504 25,.487

4 ,.8466 26,.190

4..8426 26,.903

4 ..1959 17,.859

4 ,.1895 19,.147

4,.1832 20,.367

4 ,.1801 20,.964

4,.1768 21,.566

4 ,.1734 22,.155

4 ,.1701 22,.740

4,.1668 23,.305

4 ,.1635 23,.875

3,.7936 16,.761

3,.7879 17,.856

3,.7821 18,.909

3,.7793 19,.422

3,.7764 19 .940

3,.7734 20 .448

3,.7705 20,.953

3,.7676 21 .429

3,.7645 21 .956

3 .7624 22 .292

3,.2939 14 .253

3,.2891 15 .137

3 .2843 16 .015

3,.2793 16 .877

3 .2769 17 .299

3 .2743 17 .722

3 .2717 18 .147

3 .2690 18 .576

3 .2665 18 .990

3 .2638 19 .407

3 .0593 13 .520

3 .0549 14 .312

3 .0503 15 .102

3 .0457 15 .884

3 .0434 16 .267

3 .0411 16 .647

3 .0387 17 .027

3 .0364 17 .398

3 .0341 17 .763

3 .0315 18 .158
Table 2a. (cont.) pVTx measurements of Watson and Fenghour

"^^2) T

p^^^^ p^^^^ p^^j^ 100 (P^eas-Pcalc>/P

K

0.38

0.55

0.65

0.78

0.86

0.89

0.91

0.94

1.00

1.01

1.02

0.40

0.58

0.76

0.83

0.89

1.03

1.05

1.08

1.11

1.12

1.13

1.15

0.43

0.59

0.73

0.87

0.93

1.01

1.18

1.24

1.27

1.29

1.32

1.34

0.42

0.55

0.71

0.88

1.01

1.10

1.25

1.38

1.45

1.52

1.58

rms % deviation 0.85

.7545 509..74

.7545 536,.34

.7545 562,.14

.7545 588..^5

.7545 615..98

0,.7545 629..55

.7545 643..04

0,.7545 656..84

.7545 669..80

0,.7545 683..25

.7545 697..31

0,.8148 482..99

0,.8148 509..43

0..8148 535..60

0..8148 562..23

0..8148 589..01

0..8148 616..22

0..8148 629.,69

0..8148 643..33

0..8148 656..88

0..8148 670..59

0..8148 684..21

0..8148 697..89

0,.8897 456..21

0,.8897 483..09

.8897 509,.42

0,.8897 535,.46

0,.8897 562 .15

.8897 589 .07

.8897 615 .71

0,.8897 642 .91

0,.8897 656,.49

0,.8897 670,.08

.8897 683 .77

.8897 697 .28

.9501 428,.74

.9501 455,.80

.9501 482 .37

.9501 508 .96

.9501 535 .25

.9501 562 .08

.9501 589 .05

.9501 616 .06

.9501 642 .97

.9501 670,.10

.9501 697,.22

Pmeas Pmeas Pcalc

mol dm" MPa MPa

2 .8271 12..017 11,.9708

2 .8230 12..732 12,.6622

2,.8190 13..413 13,.3263

2,.8149 14..112 14,.0026

2 .8106 14..822 14,.6940

2,.8085 15..170 15,.0353

2..8063 15.,514 15,.3727

2..8041 15.,866 15,.7169

2..8020 16.,200 16,.0387

2..7998 16.,538 16,.3716

2..7975 16.,891 16 .7184

2 .6214 10.,629 10 .5868

2 .6177 11.,281 11 .2151

2,.6140 11.,922 11 .8313

2..6103 12.,558 12 .4534

2 .6064 13.,191 13,.0737

2..6025 13.,842 13,.6995

2..6004 14.,156 14,.0072

2..5985 14..474 14,.3183

2..5960 14..787 14 .6226

2 .5944 15..104 14,.9352

2,.5924 15..417 15 .2424

2 .5903 15..731 15 .5497

2,.4040 9..2810 9 .2410

2 .4007 9..8750 9 .8170

2 .3974 10..4530 10 .3765

2 .3940 11..0220 10,.9256

2 .3906 11..5930 11,.4848

2 .3870 12..1680 12 .0447

2 .3834 12..7460 12 .5950

2 .3798 13..3190 13 .1532

2 .3780 13..6040 13 .4308

2 .3761 13..8870 13 .7075

2 .3742 14,.1730 13 .9852

2 .3723 14,.4530 14 .2592

2 .2544 8,.2080 8 .1734

2 .2513 8,.7600 8,.7117

2 .2482 9,.3020 9 .2362

2 .2451 9 .8440 9 .7575

2 .2419 10,.3740 10 .2692

2 .2386 10,.9090 10,.7886

2 .2353 11,.4500 11,.3069

2 .2319 11,.9890 11 .8231

2 .2285 12 .5160 12,.3340

2 .2250 13 .0440 12,.8461

2 .2216 13 .5700 13,.3554

27
Table 2b

pVTx measurements of Abdulagatov et al. [10]

At given x, T and p, measured and calculated pressures are compared

^(^2^ T

'^meas ^meas Pcalc IOO(p„

K

_3 mol dm MPa MPa

0.0654 663.15 27.108 59.83 57.757 3.47

0.0654 663.15 24.510 50.81 49.637 2.31

0.0654 663.15 19.732 40.99 40.431 1.36

0.0654 663.15 12.356 31.53 31.679 -0.47

0.0654 663.15 5.453 20.68 20.629 0.25

0.0654 663.15 2.191 10.45 10.385 0.63

0.0654 663.15 1.087 5.62 5.569 0.91

0.1814 663.15 18.262 60.04 61.698 -2.76

0.1814 663.15 15.103 49.68 51.062 -2.78

0.1814 663.15 11.493 39.86 40.731 -2.19

0.1814 663.15 7.650 29.83 30.046 -0.72

0.1814 663.15 4.418 19.79 19.679 0.56

0.1814 663.15 1.977 10.00 9.875 1.25

0.1814 663.15 0.948 5.05 4.985 1.28

0.3738 663.15 12.625 60.80 62.776 -3.25

0.3738 663.15 10.340 49.43 50.423 -2.01

0.3738 663.15 8.211 39.55 39.929 -0.96

0.3738 663.15 6.009 29.64 29.616 0.08

0.3738 663.15 3.876 19.76 19.651 0.55

0.3738 663.15 1.867 9.82 9.839 -0.19

0.3738 663.15 0.933 5.06 5.026 0.67

0.5456 663.15 11.635 69.28 69.512 -0.33

0.5456 663.15 9.432 54.21 53.877 0.61

0.5456 663.15 7.021 39.40 38.816 1.48

0.5456 663.15 5.308 29.57 28.979 2.00

0.5456 663.15 3.540 19.74 19.240 2.53

0.5456 663.15 1.742 9.39 9.500 -1.17

0.1173 573.15 2.100 8.16 8.200 -0.50

0.1173 573.15 1.318 5.56 5.558 0.03

0.1173 573.15 0.573 2.58 2.593 -0.52

0.2219 573.15 1.977 8.17 8.214 -0.54

0.2219 573.15 1.290 5.72 5.623 1.70

0.2219 573.15 0.568 2.58 2.605 -0.97

0.4761 573.15 1.756 8.04 8.001 0.49

0.4761 573.15 1.190 5.53 5.494 0.65

0.4761 573.15 0.553 2.59 2.596 -0.25

0.7460 573.15 1.653 8.00 7.908 1.15

0.7460 573.15 1.150 5.54 5.491 0.89

0.7460 573.15 0.546 2.60 2.600 -0.02

0.8821 573.15 6.200 32.96 32.445 1.56

0.8821 573.15 4 .814 24.84 24.522 1.28

0.8821 573.15 3.368 16.91 16.746 0.97

0.8821 573.15 2.090 10.11 10.199 -0.88

0.8821 573.15 1.073 5.07 5.168 -1.94

0.2684 523.15 1.000 3.92 4.022 -2.61

0.2684 523.15 0.502 2.08 2.102 -1.05

0.5660 523.15 0.849 3.58 3.619 -1.09

0.5660 523.15 0.490 2.11 2.106 0.20

0.8523 523.15 0.814 3.54 3.555 -0.41

0.9415 523.15 3.525 16.32 16.072 1.52

0.9415 523.15 2.658 11.97 11.951 0.16

0.9415 523.15 1.830 8.06 8.131 -0.88

0.9415 523.15 0.955 4.09 4.196 -2.58

s-Pcalc>/P

rms % deviation 1.45

28
Table 2c

pVTx measurements of Japas and Franck [9]

At given x, T and p, measured and calculated pressures are compared

xlN^) T

^meas Pmeas ^calc

100

K mol dm MPa MPa

0.1000 673..0 40.0481 256.30 248.200 3,.16

0.1000 673..0 37.0645 190.70 186.098 2.,41

0.1000 673..0 34.5423 149.90 146.538 2,.24

0.1000 673..0 27.9799 86.40 84.130 2..63

0.1005 673..0 21.9539 58.90 57.770 1..92

0.1505 673..0 36.5898 233.60 229.467 1 ..77

0.1505 673..0 33.2116 171.10 170.296 0..47

0.1505 673..0 29.6209 125.90 125.813 0..07

0.1510 673..0 24.8447 87.20 87.974 -0..89

0.1510 673..0 21.7865 71.80 71.987 -0..26

0.1510 673..0 19.1241 60.80 61.441 -1..05

0.1510 673..0 15.3610 50.20 49.806 0..78

0.2550 673..0 5.7637 26.20 26.628 -1,.64

0.2530 673..0 9.1743 39.70 39.531 0..43

0.2520 673..0 12.9550 52.70 54.173 -2,.80

0.2520 673..0 16.6861 68.70 71.167 -3,.59

0.2510 673..0 20.2388 88.30 91.567 -3,.70

0.2510 673..0 23.5960 113.00 117.405 -3,.90

0.2510 673..0 26.6738 144.30 148.930 -3,.21

0.2510 673..0 28.1611 173.80 167.571 3,.58

0.2510 673..0 31.5956 217.70 220.983 -1,.51

0.2510 673..0 34.2818 275.50 274 .542 .35

0.3510 673..0 30.0300 246.20 257.929 -4 ,.76

0.3510 673..0 27.6319 204.80 213.302 -4,.15

0.3510 673..0 26.0960 179.80 188.621 -4 .91

0.3510 673..0 22.9358 136.00 146.258 -7,.54

0.3520 673,.0 21.0926 118.50 126.346 -6 .62

0.3520 673,.0 16.3934 81.00 86.262 -6 .50

0.3530 673,.0 13.9919 68.40 70.614 -3,.24

0.3540 673 .0 8.9767 43.30 43.807 -1 .17

0.3590 673,.0 4.0783 20.10 20.882 -3 .89

0.5020 673 .0 26.3505 254.70 259.776 -1 .99

0.5020 673 .0 24.3250 212.80 219.469 -3 .13

0.5020 673 .0 21.4179 164.50 171.119 -4 .02

0.5030 673 .0 18.6289 127.80 133.898 -4 .77

0.5030 673 .0 15.7183 100.20 102.476 -2 .27

0.5050 673 .0 11.3662 65.70 66.439 -1 .12

0.5070 673 .0 7.2046 39.85 39.759 .23

0.6530 673 .0 24.8324 286.10 288.165 -0 .72

0.6530 673 .0 23.4467 251.50 251.337 .06

0.6530 673 .0 21.3767 207.10 206.205 .43

0.6530 673 .0 19.9760 181.60 180.436 .64

0.6540 673 .0 17.8827 148.80 147.617 .79

0.6540 673 .0 15.6152 118.90 117.881 .86

0.6560 673 .0 12.0802 82.30 81.063 1 .50

0.6580 673 .0 8.7291 54.40 53.812 1 .08

0.6420 673 .0 5.5130 32.40 31.935 1 .44

0.8660 673 .0 5.5402 35.10 33.945 3 .29

0.8590 673 .0 9.4697 67.60 63.725 5,.73

0.8560 673 .0 11.9603 93.50 86.877 7 .08

0.8560 673 .0 13.6799 114.80 105.675 7,.95

0.8555 673 .0 16.1603 151.30 138.420 8 .51

0.8550 673 .0 18.5357 195.70 180.265 7 .89

0.8545 673 .0 19.5848 217.70 205.716 5 .50

0.8540 673 .0 20.3707

29

236.70 232.371

rms dev

1

3

.83

.67

meas ^calc P,..i,J/P
Table 3

Solubility of N^ in H^O, by Alvarez et al. [12]

Saturated liquid composition at T, p: x is compared with model prediction: x, . Model prediction for coexisting vapor composition y , , is also given

T P X

meas calc ^calc *^H ^H

K MPa GPa GPa

Ref. 12 present present present Ref. 12

636 50 25.60 0.01076 0.011105 0.12247 0.499 0.356

630 50 22.87 0.00745 0.007678 0.11055 0.593 0.479

628 00 25.02 0.01092 0.010555 0.17317 0.632 0.465

620 .10 20.72 0.00621 0.006070 0.13697 0.756 0.632

613 .20 19.47 0.005597 0.005346 0.15713 0.868 0.731

606 .30 18.60 0.005338 0.005008 0.18717 0.985 0.830

589 30 18.68 0.005469 0.005506 0.32452 1.308 1.205

582 10 17.03 0.004403 0.004568 0.33574 1 .461 1 .415

572 .60 13 .71 0.002772 0.002908 0.30233 1.682 1.680

565 .50 11.92 0.002125 0.002170 0.28769 1.862 1.802

544 90 8.616 0.001200 0.001169 0.29444 2.468 2.33

521 .90 5.168 0.000385 0.000385 0.21808 3.324 3.22

492 .80 3.574 0.000272 0.000264 0.33288 4.760 4.57

488 .80 4.020 0.000379 0.000368 0.44508 4.996 4.83

475 50 2.137 0.000082 0.000087 0.22263 5.853 6.03

460 .80 1.764 0.000084 0.000082 0.31252 6.950 6.73

448 .30 1.327 0.000057 0.000053 0.31588 8.021 7.44

432 .90 1.274 0.000078 0.000067 0.50995 9.527 8.32

422 .70 0.938 0.000051 0.000042 0.49260 10.64 9.16

415 .40 2.298 0.000203 0.000154 0.82481 11.49 9.21

415 .10 0.628 0.000026 0.000020 0.38765 11.52 9.59

405 .20 0.810 0.000052 0.000038 0.64107 12.73 9.99

403 .40 0.534 0.000025 0.000019 0.48688 12.96 10.52

396 .50 1.628 0.000130 0.000091 0.85954 13.83 10.65

392 .50 3.441 0.000277 0.000198 0.93839 14.33 10.91

30
Table 4

Volume, enthalpy, and fugacity coefficient for each component

for a range of temperatures, on isobars at six mole fractions

of nitrogen in water.

Entries below dashed line are in region where no data exist.

31
P = 0.05 MPa

X = .05 X = 0. 10

V H <t)l <t>2 T V h <fl <1>2 dm^mol"! kJ mol~1 K dm^mol-l kJ mol-1

72.94 48 66 9965 1 .0046 440 72.97 46 65 9965 1 .0038

76.29 49 36 9971 1 .0036 460 76.32 47 34 9971 1 .0030

79.64 50 06 9975 1 .0029 480 79.67 48 04 9976 1 .0024

82.99 50 76 9979 1 .0023 500 83.01 48 73 9979 1 .0020

86.33 51 46 9982 1 .0019 520 86.35 49 43 9982 1 0016

89.67 52 17 9984 1 .0016 540 89.69 50 13 9984 1 .0014

93.01 52 88 9986 1 0013 560 93.02 50 84 9986 1 .0012

96.35 53 60 9988 1 .0011 580 96.36 51 55 .9988 1 .0010

99.68 54 32 9989 1 .0010 600 99.69 52 26 9990 1 .0009

108.02 56 14 9992 1 .0007 650 108.02 54 06 9992 1 .0006

116.34 57 98 9994 1 .0005 700 116.35 55 89 .9994 1 .0005

124.67 59 86 9995 1 .0004 750 124.67 57 75 .9995 1 .0004

132.99 61 76 9996 1 .0003 800 133.00 59 63 .9996 1 .0003

149.63 65 66 9998 1 0002 900 149.64 63 49 9998 1 .0002

166.27 69 68 9998 1 0002 1000 166.27 67 48 .9998 1 .0002

0.20 X = 0.40

V H <fl (1)2 T V H ^l (|)2 Im^mol"! kJ mol"-1 K dm^mol"! kJ ITiol-1 73.02 42 .64 9967 1 .0025 440 73.08 34 60 .9973 1 0011

76.36 43 .31 9973 1 .0021 460 76.42 35 25 .9977 1 0009

79.70 43 99 9977 1 .0017 480 79.75 35 91 9981 1 0008

83.04 44 68 9980 1 0014 500 83.09 36 57 9983 1 0007

86.38 45 36 9983 1 0012 520 86.42 37 23 9985 1 0006

89.71 46 05 9985 1 0010 540 89.75 37 89 9987 1 0005

93.04 46 75 9987 1 0009 560 93.08 38 56 9989 1 0005

96.38 47 44 9989 1 0008 580 96.41 39 23 9990 1 0004

99.71 48 14 9990 1 0007 600 99.74 39 91 9991 1 0004

108.04 49 91 9992 1 0005 650 108.06 41 62 9993 1 0003

116.36 51 71 9994 1 0004 700 116.38 43 35 9995 1 0003

124.68 53 53 9995 1 0003 750 124.70 45 10 9996 1 0002

133.00 55 38 9996 1 0003 800 133.02 46 88 9997 1 0002

149.64 59 17 9998 1 0002 900 149.66 50 51 9998 1 0002

166.28 63 07 9998 1 0002 1000 166.29 54 24 9999 1 0001

X = .60 X = 0. 80

V H ^1 (t)2 T V H ^l (|)2 dm3mc 1-1 kJ mol~ 1 K dm3mo1-1 kJ mol-l

73 13 26. 55 0. 9980 1 0004 440 73 16 18. 50 9986 0001

76 46 27. 18 0. 9983 1 0004 460 76 49 19. 11 9988 0001

79 79 27. 81 9985 1 0003 480 79 81 19. 72 9990 0001

83 12 28. 45 9987 1 0003 500 83 14 20. 33 9991 0001

86 45 29. 09 9989 1 0003 520 86 47 20. 95 9992 0001

89 78 29 73 9990 1 0003 540 89 80 21. 57 9993 0001

93 11 30 38 9991 1 0003 560 93 12 22. 19 9994 0001

96 43 31 02 9992 1 0002 580 96 45 22 81 9995 .0001

99 76 31 68 9993 1 0002 600 99 78 23 44 9995 .0001

108 08 33 32 9995 1 .0002 650 108 09 25 02 9997 .0001

116 .40 34 98 9996 1 .0002 700 116 41 26 61 9997 .0001

124 .72 36 .66 .9997 1 .0002 750 124 .73 28 23 .9998 .0001

133 .03 38 .37 .9997 1 .0002 800 133 .04 29 86 .9999 .0001

149 .67 41 .85 .9998 1 .0001 900 149 .67 33 19 .9999 .0001

166 .30 45 .42 .9999 1 .0001 1000 166 .30 36 .60 1 .0000 .0001

32
0.1 MPa

X = 0.05

V H

dm3mol~l kJ mol-1

36.36

38.05

39.73

41.42

43.10

44.77

46.45

48.12

49.80

53.97

58.14

48.61

49.32

50.02

50.73

51.43

52.15

52.86

53.58

54.30

56.12

57.97

0.9930

0.9941

0.9951

0.9958

0.9964

0.9969

0.9973

0.9977

0.9979

0.9985

0.9988

1.0093

0073

0058

0047

0038

0032

0027

0023

0020

0014

0011

T

K

440

460

480

500

520

540

560

580

600

650

700

V

X = 0.10

H dm^mol"! kJ mol~l

36.38 46.61

38.07

39.76

41.44

43.11

44.79

46.46

48.13

49.81

53.98

58.15

47.31

48.01

48.70

49.41

50.11

50.82

51.53

52.24

54.05

55.88

0.9931

0.9942

0.9952

0.9959

0.9965

0.9969

0.9973

0.9977

0,9980

0.9985

0.9988

62.36 36.66 0.9994 1.0004 750 62.37

66.52 38.37 0.9995 1.0003 800 66.53

74.84 41.85 0.9997 1.0003 900 74.84

83.15 45.42 0.9998 1.0003 1000 83.16

^2

0077

0061

0049

0040

0033

0028

0024

0020

0018

0013

0010

62 31 59 85 9991 1 0008 750 62 32 57 74 9991 1 0008

66 48 61 75 9993 1 0007 800 66 48 59 63 9993 1 .0007

74 80 65 65 9995 1 0005 900 74 81 63 49 9995 1 .0005

83 13 69

X

68

= .20

9997 1 0004 1000 83 13 67

X

47

= 0. 40

9997 1 .0004

V H (1)1 $2 T V F[ <^l (1)2 dm^mol"! kJ mol" 1 K dm3 mo 1-1 kJ mol-l

36 43 42 61 9935 1 0051 440 36 50 34 58 9947 .0022

38 11 43 29 9946 1 0042 460 38 17 35 24 9955 .0019

39 79 43 97 9954 1 0034 480 39 84 35 89 9962 .0016

41 47 44 66 9961 1 0029 500 41 51 36 55 .9957 .0014

43 14 45 34 9966 1 0024 520 43 18 37 22 .9971 .0012

44 .81 46 04 9971 1 .0021 540 44 85 37 88 .9975 .0011

46 .48 46 73 9974 1 0018 560 46 52 38 55 .9978 .0010

48 .15 47 43 9978 1 0016 580 48 19 39 23 .9980 .0009

49 .82 48 13 9980 1 .0014 600 49 85 39 90 .9983 .0008

53 .99 49 90 9985 1 .0011 650 54 02 41 61 .9987 .0007

58 .16 51 70 9989 1 0009 700 58 18 43 34 .9990 .0006

62 .33 53 52 9991 1 0007 750 62 34 45 09 .9992 .0005

66 .49 55 38 9993 1 0006 800 66 51 46 87 9994 .0005

74 81 59 16 9996 1 0005 900 74 83 50 51 9996 .0004

83 13 63

X

06

= .60

9997 1 0004 1000 83 14 54

X

24

= 0. 80

9997 .0003

V H <t)l <t>2 T V H 4)1 02

dm^mol"! kJ mol" 1 K dm^mo1-1 kJ mol-l

36 55 26 54 9960 1 0008 440 36 57 18 49 9973 1 0003

38 21 27 17 9966 1 0008 460 38 24 19 10 9977 1 0003

39 88 27 81 9971 1 0007 480 39 90 19 72 9980 1 0003

41 55 28 44 9974 1 0007 500 41 57 20 33 9982 1 0003

43 21 29 08 9978 1 0006 520 43 23 20 95 9985 1 0003

44 88 29 73 9980 1 0006 540 44 90 21 57 9987 1 0003

46 54 30 37 9983 1 0005 560 46 56 22 19 9988 1 0003

48 21 31 02 9985 1 0005 580 48 23 22 81 9990 1 0003

49 .88 31 67 9986 1 0005 600 49 89 23 44 9991 1 0003

54 .04 33 31 9990 1 .0004 650 54 05 25 02 9993 1 0003

58 .20 34 .98 9992 1 0004 700 58 21 26 61 9995 1 0003

28.23 0.9996 1.0003

29.86 0.9998 1.0003

33.19 0.9999 1.0002

36.60 1.0000 1.0002

33
P = 0.15 MPa

X = 0.05

V H

dm^mol"! kJ mol~l

24.16 48.57

25.30

26.43

27.56

28.69

29.81

30.93

32.05

33.17

35.96

38.74

49.28

49.99

50.70

51.41

52.12

52.84

53.56

54.28

56.11

57.96

0.9894

0.9912

0.9926

0.9937

0.9947

0.9954

0.9960

0.9965

0.9969

0.9977

0.9983

1.0142

0111

0088

0071

0058

0048

0041

0035

0030

0021

0016

TK

440

460

480

500

520

540

560

580

600

650

700

V

X = 0.10

H

dm3mol~l kJ mol~l

24.19 46.57

25.32

26.45

27.58

28.70

29.82

30.94

32.06

33.18

35.96

38.75

47.27

47.97

48.68

49.38

50.09

50.80

51.51

52.23

54.04

55.87

0.9896

0.9914

0.9927

0.9938

0.9947

0.9954

0.9960

0.9965

0.9970

0.9977

0.9983

41.57 36.66 0.9991 1.0006 750 41.58

44.35 38.37 0.9993 1.0005 800 44.36

49.89 41.85 0.9996 1.0005 900 49.90

55.44 45.42 0.9997 1.0004 1000 55.44

<?2

0116

0092

0074

0061

0050

0042

0036

0031

0027

0020

0015

41.52 59.84 0.,9987 1..0013 750 41.53 57.73 0,.9987 1,.0012

44.30 61.74 0.,9990 1..0010 800 44.31 59.62 0..9990 1,,0010

49.86 65.65 0.,9993 1..0008 900 49.86 63.48 0,.9993 1,.0008

55.41 69.67

X =

0.

.20

,9996 1..0006 1000 55.41 67.47

X = 0.

0.

40

.9996 1,.0006

V H <?1 (t)2 T V H 1)1 ^2 dm^mol"! kJ mol" 1 K dm^mol"! kJ mol-l

24.24 42.58 0.,9903 1,.0078 440 24.31 34.56 0..9921 1,.0033

25.36 43.26 0.,9919 1..0063 460 25.42 35.22 0..9933 1..0028

26.49 43.95 0.,9931 1..0052 480 26.54 35.88 0,.9943 1,,0024

27.61 44.64 0.,9941 1..0044 500 27.66 36.54 0,.9951 1..0021

28.73 45.33 0.,9950 1..0037 520 28.77 37.21 0,.9957 1.,0019

29.85 46.02 0.,9956 1..0032 540 29.89 37.87 0,.9962 1,,0017

30.96 46.72 0.,9962 1,.0028 560 31.00 38.55 0,.9967 1.,0015

32.08 47.42 0.,9967 1..0024 580 32.11 39.22 0,.9971 1,,0014

33.19 48.12 0.,9971 1..0021 600 33.22 39.90 0..9974 1,,0013

35.98 49.89 0.,9978 1..0016 650 36.00 41.60 0,.9981 1,,0011

38.76 51.69 0.,9983 1..0013 700 38.78 43.34 0,.9985 1,,0009

41.54 53.52 0.,9987 1..0011 750 41.56 45.09 0,.9988 1,,0008

44.32 55.37 0.,9990 1..0009 800 44.33 46.87 0,.9991 1.,0007

49.87 59.16 0.,9994 1,.0007 900 49.88 50.50 0..9994 1,,0006

55.42 63.06

X =

0.

.60

,9996 1..0006 1000 55.43 54.24

X = 0.

0,

80

.9996 1.,0005

V H <!>i (t)2 T V H <t>l (1,2 dm^mol"! kJ mol" 1 K dm^mol"! kJ mol-1

24.35 26.53 0..9941 1,.0013 440 24.38 18.49 0,.9960 ,0005

25.46 27.17 0..9949 1,.0012 460 25.49 19.10 0,.9965 ,0005

26.58 27.80 0,.9956 1,.0011 480 26.60 19.71 0,.9970 ,0005

27.69 28.44 0..9962 1,.0010 500 27.71 20.33 0,.9974 .0005

28.80 29.08 0,.9967 1,.0009 520 28.82 20.94 0,.9977 .0005

29.91 29.72 0,.9971 1,.0009 540 29.93 21.56 0,.9980 .0005

31.02 30.37 0,.9974 1 .0008 560 31.04 22.19 0,.9982 .0005

32.14 31.02 .9977 1 .0008 580 32.15 22.81 .9985 .0005

33.25 31.67 .9980 1 .0008 600 33.26 23.44 .9986 .0005

36.02 33.31 .9985 1 .0007 650 36.04 25.02 .9990 .0004

38.80 34.98 .9988 1 .0006 700 38.81 26.61 .9993 .0004

28.23 0.9995 1.0004

29.86 0.9996 1.0004

33.19 0.9999 1.0003

36.60 1.0000 1.0003

34
P = 0.2 MPa

V

X = 0.05

H dm3mol"l kJ mol~l

18.06

18.92

19.78

20.63

21.48

22.33

23.17

24.01

24.85

26.95

29.04

48.52

49.23

49.95

50. 66

51.38

52.10

52.82

53.54

54.26

56.09

57.95

0.9859

0.9883

0.9902

0.9917

0.9929

0.9939

0.9947

0.9953

0.9959

0.9970

0.9977

0192

0149

0118

0096

0078

0065

0055

0047

0040

0029

0022

TK

440

460

480

500

520

540

560

580

600

650

700

V

X = 0.10

H dm^mol"! kJ mol~l

18.09

18.95

19.80

20.65

21.50

22.34

23.18

24.02

24.86

26.96

29.05

46.53

47.24

47.94

48. 65

49.36

50.07

50. 78

51.49

52.21

54.02

55.86

0.9862

0.9885

0.9903

0.9918

0.9930

0.9939

0.9947

0.9954

0.9959

0.9970

0.9977

31.18 36.66 0.9988 1.0008 750 31.19

33.26 38.37 0.9991 1.0007 800 33.27

37.42 41.85 0.9994 1.0006 900 37.43

41.58 45.42 0.9997 1.0005 1000 41.59

<t>2

,0157

,0124

,0100

,0081

,0068

,0057

,0048

0042

1.0036

1.0026

1.0020

31.13 59 83 9982 1 0017 750 31 14 57 72 9983 1 0016

33.22 61 74 9986 1 0014 800 33 22 59 61 9986 1 0014

37.39 65 64 9991 1 0010 900 37 39 63 48 9991 1 0010

41.55 69

X

67

= .20

9994 1 0008 1000 41 56 67

X

46

= 0. 40

9994 1 0008

V H t)l (|)2 T V H 4)1 <))2 dm^mol"! kJ mol" 1 K dm^mo 1-1 kJ Tiol-l 18.14 42 55 9871 1 0104 440 18 21 34 55 9895 1 .0044

18.99 43 24 9892 1 0085 460 19 05 35 21 9911 1 .0038

19.84 43 93 9909 1 0070 480 19 89 35 87 9924 1 .0033

20.68 44 62 9922 1 0058 500 20 73 36 53 9934 1 .0029

21.52 45 31 9933 1 0050 520 21 57 37 20 9943 1 .0025

22.36 46 00 9942 1 0043 540 22 40 37 87 9950 1 .0023

23.20 46 70 9949 1 0037 560 23 24 38 54 9956 1 .0021

24.04 47 40 9956 1 0032 580 24 07 39 21 9961 1 .0019

24.88 48 11 9961 1 .0029 600 24 .91 39 89 9966 1 .0017

26.97 49 88 9971 1 0022 650 27 .00 41 60 9974 1 .0014

29.06 51 68 9978 1 0018 700 29 .08 43 33 9980 1 .0012

31.15 53 51 9983 1 .0015 750 31 .16 45 09 9985 1 .0011

33.23 55 36 9987 1 .0013 800 33 25 46 87 9988 1 0010

37.40 59 15 9991 1 0010 900 37 41 50 50 9992 1 0008

41.56 63

X

06

= .60

9994 1 0008 1000 41 57 54

X

24

= 0. 80

9995 1 0007

V H <!)1 (?2 T V h[ <!)i (5,2 dm3inol-l kJ mol~ 1 K dm3mo1-1 kJ mol-l

18.25 26 52 9921 1 0017 440 18 28 18 49 9946 1 0006

19.09 27 16 9932 1 0016 460 19 12 19 10 9954 1 0006

19,93 27 79 9942 1 0015 480 19 95 19 71 9960 1 0007

20.76 28 43 9949 1 0013 500 20 78 20 33 9965 1 0007

21.60 29 07 9955 1 0013 520 21 62 20 94 9970 1 0007

22.43 29 72 9961 1 0012 540 22 45 21 56 0. 9973 1 0007

23.26 30 36 9965 1 0011 560 23 28 22 18 0. 9977 1 0006

24.10 31 01 9969 1 0011 580 24 11 22 81 0. 9980 1 0006

24.93 31 66 9973 1 0010 600 24 95 23 44 9982 1 0006

27.02 33 31 9979 1 .0009 650 27 03 25 02 9987 1 0006

29.10 34 97 9984 1 .0008 700 29 11 26 61 9991 1 0006

28.23 0.9993 1.0006

29.86 0.9995 1.0005

33.19 0.9998 1.0005

36.60 1.0000 1.0004

35
P = 0.3 MPa

X = 0.05

V H

dm^mol"! kJ mol~l

X 0.10

(1)2 T V H

K dm3niol-l kJ mol~l

11.96

12.55

13.13

13.70

14.27

14.84

15.41

15.97

16.54

17.94

19.34

48.42

49.15

49.88

50.60

51.33

52.05

52.77

53.50

54.23

56.07

57.92

0.9788

0.9825

0.9853

0.9875

0.9893

0.9908

0.9920

0.9930

0.9939

0.9955

0.9966

0297

0229

0181

0146

0119

0099

0083

0071

0061

0043

0033

440

460

480

500

520

540

560

580

600

650

700

11.99

12.57

13.15

13.72

14.29

14.86

15.42

15.99

16.55

17.95

19.35

46.45

47.17

47.88

48.60

49.31

50.02

50.74

51.46

52.18

54.00

55.84

0.9793

0.9828

0.9855

0.9877

0.9895

0.9909

0.9921

0.9931

0.9939

0.9955

0.9966

20.79 36.65

22.17 38.36

24.95 41.84

27.72 45.42

02

0241

0189

0152

0124

0102

0086

0073

0063

0055

0040

0031

20.74 59..81 0..9974 1..0026 750 20.74 57.71 0,.9974 1,.0025

22.13 61.,72 0.,9980 1,.0021 800 22.14 59.60 0,.9980 1,.0021

24.92 65..63 0.,9987 1..0016 900 24.92 63.47 0,.9987 1,.0016

27.70 69.

X

,66

=

0.

.20

,9992 1.,0013 1000 27.70 67.46

X = 0.

0.

40

.9992 1 .0013

V H <1)1 <1)2 T V H <I>1 (t)2 dm^mol"! kJ mol~ 1 K dm^mol"! kJ mol-1

12.04 42..49 0.,9806 ,0159 440 12.11 34.52 0..9843 .0067

12.61 43..18 0.,9838 ,0129 460 12.68 35.18 0.,9867 .0057

13.18 43.,88 0.,9863 ,0106 480 13.24 35.84 0.,9886 .0050

13,75 44.,58 0.,9883 ,0088 500 13.80 36.51 0,.9902 .0043

14.32 45.,27 0.,9899 ,0075 520 14.36 37.18 0,.9915 .0038

14.88 45.,97 0.,9913 ,0064 540 14.92 37.85 0,.9925 .0034

15.44 46.,67 0.,9924 ,0056 560 15.48 38.52 0..9934 .0031

16.01 47.,38 0.,9934 ,0049 580 16.04 39.20 0,.9942 .0028

16.57 48.,08 0.,9941 .0043 600 16.60 39.88 0,.9949 .0026

17.96 49.,86 0.,9957 .0033 650 17.99 41.59 0..9962 .0022

19.36 51.,67 0.,9967 .0027 700 19.38 43.32 0,.9971 .0019

20.75 53.,50 0.,9975 .0022 750 20.77 45.08 0,.9977 .0017

22.15 55.,35 0.,9980 .0019 800 22.16 46.86 0,.9982 .0015

24.93 59.,14 0.,9987 .0015 900 24.94 50.49 0,.9989 .0012

27.70 63.

X

,05

=

0.

.60

.9992 .0012 1000 27.72 54.23

X = 0.

0.

80

.9993 .0011

V H *1 02 T V H <t>l ^2 dm^mol"! kJ mol~1 K din3mol-l kJ mol-l

12.16 26,.51 0,.9882 1,.0026 440 12.18 18.48 0,.9919 1,.0010

12.72 27..14 0..9899 1,.0024 460 12.74 19.09 0,.9931 1,.0010

13.27 27,.78 0,.9913 1,.0022 480 13.30 19.70 0,.9940 1,.0010

13.83 28,.42 0,.9924 1,.0020 500 13.85 20.32 0,.9948 1 .0010

14.39 29,.06 0,.9933 1,.0019 520 14.41 20. 94 0,.9955 1 .0010

14.95 29,.71 0,.9942 1 .0018 540 14.97 21.56 0,.9960 1 .0010

15.50 30 .35 0,. 9948 1 .0017 560 15.52 22.18 0,.9965 1 .0010

16.06 31 .00 .9954 1 .0016 580 16.08 22.81 .9970 1 .0010

16.62 31 . 66 .9959 1 .0015 600 16.63 23, 43 0,.9973 1 .0010

18.01 33 .30 .9969 1 .0014 650 18.02 25.01 .9981 1 .0009

19.40 34 .97 .9977 1 .0013 700 19.41 26.61 .9986 1 .0009

0.9982 1.0012 750 20.80 28.23 0.9990 1.0008

0.9986 1.0011 800 22.18 29.86 0.9993 1.0008

0.9992 1.0009 900 24.96 33.19 0.9997 1.0007

0.9995 1.0008 1000 27.73 36.60 1.0000 1.0006

36
P = 0.4 MPa

X = 0.05

V H

dm^mol"! kJ inol~l

(|)2

8.91

9.36

9.80

10.24

10.67

11.10

11.53

11.96

12.38

13.44

14.49

48.32

49.07

49.80

50.54

51.27

52.00

52.73

53.46

54.19

56.04

57.90

0.9717

0.9766

0.9804

0.9834

0.9858

0.9878

0.9894

0.9907

0.9919

0.9940

0.9955

0407

0313

0246

0197

0161

0133

0112

0095

0082

0058

0044

TK

440

460

480

500

520

540

560

580

600

650

700

V

X = 0.10

H

dm3[nol"l kJ mol"l

8.94

9.38

9.82

10.25

10.69

11.11

11.54

11.97

12.39

13.45

14.50

46.36

47.09

47.82

48.54

49.26

49.98

50.70

51.43

52.15

53.97

55.82

0.9723

0.9770

9807

9836

9860

9879

9895

9908

0.9919

0.9941

0.9955

15.59 36.65 0.9976 1.0016 750 15.60

16.63 38.36 0.9982 1.0015 800 16.64

18.71 41.84 0.9989 1.0013 900 18.72

20.80 45.41 0.9994 1.0011 1000 20.80

02

1.0328

1.0257

0205

0167

0138

0116

0098

0084

0073

0054

1.0041

15.54 59.79 9965 1 0035 750 15.55 57.69 9966 1 0033

16.59 61.70 9973 1 0029 800 16.59 59.58 9973 1 0028

18.68 65.62 9983 1 0021 900 18.68 63.46 9983 1 0021

20.77 69.65

X = .20

9989 1 0017 1000 20.77 67.45

X = 0. 40

9989 1 0017

V H <t)l (|)2 T V H 01 02

dm^inol"! kJ mol~1 K dm^mol"! kJ mol-i

8.99 42.43 9742 1 0215 440 9.06 34.49 9791 1 0090

9.43 43.13 9784 1 0173 460 9.49 35.15 9823 1 0077

9.86 43.83 9817 1 0142 480 9.91 35.82 9848 1 0066

10.29 44.54 9844 1 0119 500 10.34 36.49 9869 1 .0058

10.71 45.24 9866 1 0101 520 10.76 37.16 9886 1 0052

11.14 45.94 9884 1 0086 540 11.18 37.83 9901 1 0046

11.56 46.64 9899 1 0075 560 11.60 38.50 9913 1 0042

11.99 47.35 9912 1 0066 580 12.02 39.18 9923 1 .0038

12.41 48.06 9922 1 0058 600 12.44 39.86 9932 1 .0035

13.46 49.84 9942 1 0045 650 13.49 41.58 9949 1 .0029

14.51 51.65 9956 1 0036 700 14.53 43.31 9961 1 .0025

15.56 53.48 9966 1 0030 750 15.58 45.07 .9970 1 .0022

16.60 55.34 9974 1 0026 800 16.62 46.85 9976 1 .0020

18.69 59.14 9983 1 0020 900 18.70 50.49 .9985 1 .0017

20.78 63.04

X = .60

9989 1 0017 1000 20.79 54.23

X = 0. 80

.9991 1 .0014

V H (?1 (1)2 T V H fl 02

dm^mol-l kJ mol- 1 K dm^mol-l kJ mol-1

9.11 26.49 9843 1 0035 440 9.14 18.47 9893 .0013

9.53 27.13 9865 1 0032 460 9.55 19.09 9908 .0013

9.95 27.77 9884 1 0030 480 9.97 19.70 9920 .0013

10.37 28.41 9899 1 0028 500 10.39 20.32 9931 0013

10.79 29.05 9911 1 0026 520 10.81 20.93 9940 0013

11.21 29.70 9922 1 0024 540 11.23 21.55 9947 0013

11.62 30.35 .9931 1 .0023 560 11.64 22.18 9954 0013

12.04 31.00 .9939 1 .0022 580 12.06 22.80 9959 0013

12.46 31.65 .9946 1 .0021 600 12.48 23.43 9964 0013

13.50 33.30 .9959 1 .0019 650 13.52 25.01 9974 0012

14.55 34.96 .9969 1 .0017 700 14.56 26. 61 ,9981 0012

28.23 0.9987 1.0011

29.86 0.9991 1.0011

33.19 0.9996 1.0010

36.60 1.0000 1.0009

37
P = 0.5 MPa

X = .05 X = 0. 10

V H ^1 $2 T V H •fl <1>2 dm^mol"! kJ mol~ 1 K drn^mol"! kJ niol-1 7.08 48.21 0.,9645 1..0523 440 7.11 46.28 0.,9653 1.,0420

7.44 48.98 0..9707 1,.0400 460 7.47 47.02 0.,9712 1..0327

7,80 49.73 0.,9754 1,.0313 480 7.82 47.76 0,,9758 1,.0260

8.16 50.47 0..9792 1..0250 500 8.18 48.49 0.,9795 1,.0211

8.51 51.21 0..9822 1..0203 520 8.52 49.21 0.,9825 1..0174

8.85 51.95 0,,9847 1..0168 540 8.87 49. 94 0,,9849 1..0146

9.20 52. 69 0..9867 1..0141 560 9.21 50.66 0.,9869 1..0124

9.54 53.42 0.,9884 1..0119 580 9.55 51.39 0..9885 1,.0106

9.89 54.16 0.,9899 1..0103 600 9.90 52.12 0,.9899 1,.0092

10.74 56.01 0,,9925 1,.0073 650 10.74 53. 95 0,.9926 1,.0067

11.58 57.88 0.,9944 1,.0055 700 11.59 55.80 0..9944 1 .0052

12.42 59.77 0..9957 1,.0044 750 12.43 57.67 0,.9957 1 .0042

13.26 61.69 0..9966 1,.0036 800 13.27 59.57 0,.9967 1 .0035

14.94 65.61 0..9979 1,.0027 900 14.94 63.45 0,.9979 1 .0026

16.61 69.64

X =

0.

.20

.9987 1,.0021 1000 16.61 67.44

X = 0.

0,

40

.9987 1 .0022

V H <t)l <t)2 T V H *l (j)2 dm^mol"! kJ mol~ 1 K dm3n\ol~l kJ mol-1

7.16 42.37 0..9677 .0272 440 7.23 34.46 0,.9739 1 .0113

7.51 43.08 0,.9730 .0219 460 7.58 35.12 0,.9779 1 .0097

7.86 43.79 0,.9772 .0180 480 7.92 35.79 0,.9810 1 .0083

8.21 44.49 0..9805 .0150 500 8.26 36.46 0,.9836 1 .0073

8.55 45.20 0..9833 .0127 520 8.60 37.14 0,.9858 1 .0065

8.89 45.91 0..9855 .0109 540 8.93 37.81 0,.9876 1 .0058

9.24 46. 61 0,.9874 .0094 560 9.27 38.49 0,.9891 1 .0053

9.58 47.32 0,,9890 .0082 580 9.61 39.17 0,.9904 1 .0048

9.91 48.03 0..9903 .0073 600 9.94 39.85 0,.9915 1 .0044

10.76 49.82 0,.9928 .0056 650 10.78 41.56 0..9936 1 .0037

11.60 51.64 0..9945 .0045 700 11.62 43.30 0..9951 1,.0032

12.44 53.47 0,.9958 .0037 750 12.46 45.06 0,.9962 1..0028

13.28 55.33 0,.9967 .0032 800 13.29 46.84 0,,9970 1,.0025

14.95 59.13 0..9979 .0025 900 14.96 50.48 0..9981 1,.0021

16.62 63.04 0..9987 .0021 1000 16.63 54.23 0,.9988 1,.0018

X = 0.60

V H <t>2 dm^mol"! kJ mol-l

7.28

7.62

7.95

8.29

8.63

8.96

9.30

9,63

9.97

10.80

26.48

27.12

27.76

28.40

29.04

29,69

30.34

30.99

31.64

33.29

11.64 34.96

0.9804

0.9832

0.9855

0.9874

0.9889

0.9903

0.9914

0.9924

0.9933

0.9949

0.9961

0044

0040

0037

0035

0032

0030

0029

0027

0026

0024

0021

X = 0.80

T V H (1)1 K dm^mol"! kJ mol~l

440

460

480

500

520

540

560

580

600

650

700

7.31

7.64

7.98

8.31

8.65

8.98

9.31

9.65

9.98

10.82

11.65

18.47

19.08

19.69

20.31

20.93

21.55

22.17

22.80

23.43

25.01

26.61

0.9866

0.9885

0.9901

0.9914

0.9925

0.9934

0.9942

0.9950

0.9956

0.9968

0.9977

0017

0017

0017

0017

0017

0017

0017

0016

0016

0016

0015

12.47 36.65 0.9970 1.0020 750 12.48

13.31 38.36 0.9977 1.0018 800 13.31

14.97 41.84 0.9986 1.0016 900 14.98

16.64 45.41 0.9992 1.0014 1000 16.64

28.23 0.9984 1.0014

29.86 0.9989 1.0013

33.19 0.9996 1.0012

36.60 1.0000 1.0011

38
X = 0.05

V H <t)i dm3mol~l kJ mol~l

(j)2

P = . 6 MPa

X = 0.10

T V H

K dm^mol"! kJ mol~l

86

17

47

77

07

36

65

94

8.22

8.93

9.64

48.10

48.89

4 9.65

50.41

51.16

51.90

52.64

53.38

54.12

55.98

57.86

0.9573

0.9647

0.9705

0.9750

0.9787

0.9816

0.9841

0.9861

0.9878

0.9911

0.9933

0646

0490

0382

0304

0247

0203

0170

0144

0124

0088

0067

440

460

480

500

520

540

560

580

600

650

700

5.8

6.1

6.4

46.19

46.95

47.69

48.43

49.16

49.90

50.63

51.36

52.09

53. 92 55.78

0.9583

0.9654

0.9710

0.9754

0.9790

9819

9843

9863

9879

0.9911

0.9933

10,39 36.64 0.9964 1.0024 750

11.09 38.35 0.9973 1.0022 800

12.48 41.84 0.9984 1.0019 900

13.87 45.41 0.9991 1.0017 1000

4>2

0516

0399

0317

0256

0211

0176

0149

0128

0111

1.0081

1.0063

10.34 59.75 0.,9948 1..0053 750 10.35 57.65 0,.9949 1 .0050

11.05 61.67 0,.9960 1,.0043 800 11.05 59.55 0,.9960 1 .0042

12.44 65.59 0..9975 1.,0032 900 12.45 63.44 0,.9975 1 .0032

13.84 69.63

X =

0.

.20

.9984 1,.0026 1000 13.84 67.43

X = 0.

0,

40

.9984 1 .0026

V H <t)l (t)2 T V H 1)1 02

dm^mol"! kJ mol" 1 K dm^mol"! kJ mol-1

5.94 42.30 0..9612 1.,0332 440 6.01 34.42 0,.9687 .0137

6.24 43.03 0,.9676 1.,0266 460 6.30 35.10 0,.9735 .0117

6.53 43.74 0,,9726 1.,0218 480 6.59 35.77 0,.9773 .0101

6.82 44.45 0..9766 1,.0181 500 6.87 36.44 0,.9804 .0088

7.11 45.16 0,,9799 1,.0153 520 7.15 37.12 0,.9830 .0078

7.40 45.87 0,,9826 1,.0131 540 7.44 37.79 0,.9851 .0070

7.68 46.58 0,,9849 1..0113 560 7.72 38.47 0,.9869 .0063

7.97 47.30 0..9868 1,.0099 580 8.00 39.15 0,.9885 .0058

8.25 48.01 0..9883 1,.0088 600 8.28 39.83 0,.9898 .0053

8.96 49.81 0,.9914 1,.0067 650 8.98 41.55 0,.9923 .0044

9.66 51.62 0..9935 1,.0054 700 9.68 43.29 0,.9941 .0038

10.36 53.46 0.,9950 1,.0045 750 10.38 45.05 0,.9955 .0034

11.06 55.32 0.,9961 1,.0039 800 11.08 46.84 0,.9964 .0030

12.45 59.12 0.,9975 1..0030 900 12.47 50.48 0,.9978 .0025

13.85 63.03

X =

0.

.60

,9984 1,.0025 1000 13.86 54.22

X = 0.

0,

80

.9986 .0022

V H <^l (t)2 T V H <!>i 02

dm^mol"! kJ mol~1 K dm^mol"! kJ mol-1

6.06 26.46 0.,9765 1,.0054 440 6.09 18.46 0..9840 .0020

6.34 27.10 0..9798 1..0049 460 6.37 19.07 0.,9862 .0020

6.62 27.74 0,.9826 1..0045 480 6.65 19.69 0.,9881 ,0021

6.90 28.39 0..9848 1,.0042 500 6.93 20.31 0.,9897 ,0021

7.18 29.03 0..9867 1.,0039 520 7.20 20.92 0.,9910 .0020

7.46 29.68 0..9884 1,,0037 540 7.48 21.55 0,.9921 .0020

7.74 30.33 0..9897 1..0035 560 7.76 22.17 0..9931 .0020

8.02 30.98 0..9909 1,.0033 580 8.04 22.80 0..9940 .0020

8.30 31.64 0..9919 1,.0032 600 8.32 23.42 0,,9947 ,0020

9.00 33.28 0,.9939 1,.0028 650 9.01 25.01 0,.9962 .0019

9.70 34.95 0,.9954 1,.0026 700 9.71 26.61 0.,9972 .0018

10.40 28.22 0.9980 1.0017

11.10 29.86 0.9986 1.0016

12.49 33.19 0.9995 1.0015

13.87 36.60 1.0000 1.0013

39
P = 0.8 MPa

X = 0.05

V H

X 0.10

<t>2 dbn^mol"! kJ mol~l

T V H

K dm^mol"! kJ mol~l

4.57

4.81

5.04

5.26

5.49

5.71

5.93

6.14

6.68

7.22

48.70

49.50

50.28

51.04

51.80

52.55

53.30

54.05

55.92

57.81

0.9528

0.9605

0.9666

0.9715

0.9755

0.9788

0.9815

0.9838

0.9881

0.9910

,0684

,0528

,0417

,0337

,0276

,0230

1.0195

1.0167

1.0119

1.0089

460

480

500

520

540

560

580

600

650

700

4..60 46

4..83 47

5,.06 48

5..28 49

5..50 49

5..72 50

5..94 51

6,.15 52

6,.69 53

7,.22 55

79 0.9537

,56 0.9612

,32 0.9672

,07 0.9719

81 0.9758

,55 0.9790

,29 0.9817

,02 0.9839

,87 0.9882

,74 0.9911

7.80 36.63 0.9953 1.0032 750

8.32 38.35 0.9964 1.0030 800

9.36 41.83 0.9979 1.0026 900

10.40 45.41 0.9988 1.0023 1000

(|)2

0552

0435

0350

0286

0239

0202

0173

0149

0109

0084

7.75 59.71 0,.9931 1,.0071 750 7.75 57.62 0,,9932 1,.0068

8.27 61.64 0,.9947 1,.0058 800 8.28 59.53 0,,9947 1 .0056

9.33 65.57 0..9967 1 .0043 900 9.33 63.41 0,.9967 1 .0043

10.37 69.61

X =

0.

.20

.9979 1,.0035 1000 10.38 67.41

X = 0.

0,

40

.9979 1 .0035

V H <t)l (t)2 T V H <fl (])2 dm^mol"! kJ mol~ 1 K dm^moi"! kJ mol-1

4.42 42.18 0,.9482 1,,0455 440 4.49 34.36 0,.9584 1 .0185

4.64 42.92 0,.9567 1,.0363 460 4.71 35.04 0..9647 1 .0157

4.87 43.65 0..9635 1,.0295 480 4.92 35.72 0,.9697 1 .0135

5.09 44.37 0..9689 1,.0245 500 5.14 36.40 0,.9739 1 .0119

5.31 45.09 0,.9733 1,.0206 520 5.35 37.08 0,.9773 1,.0105

5.53 45.81 0,.9769 1..0176 540 5.57 37.76 0,.9802 1,.0094

5.74 46.52 0,,9798 1..0153 560 5.78 38.44 0,.9826 1,,0085

5.96 47.24 0,,9824 1,.0134 580 5.99 39.12 0.,9847 1,.0078

6.17 47.96 0,,9845 1,.0118 600 6.20 39.80 0.,9864 1,,0071

6.71 49.77 0.,9885 1..0090 650 6.73 41.53 0.,9898 1.,0059

7.23 51.59 0.,9913 1..0073 700 7.26 43.27 0.,9922 1.,0051

7.76 53.43 0.,9933 1,.0060 750 7.78 45.04 0,,9940 1.,0045

8.29 55.29 0.,9948 1,.0052 800 8.30 46.82 0.,9953 1,,0040

9.34 59.10 0,,9967 1,.0041 900 9.35 50.47 0.,9970 1,,0034

10.38 63.02

X =

0.

.60

,9979 1,.0034 1000 10.39 54.21

X = 0.

0.

80

,9981 1,,0029

V H <t)l <|)2 T V H <1>1 <])2 dm^mol"! kJ mol~1 K dm^mol-l kJ mol-1

4.53 26.43 0.,9688 1,.0072 440 4.56 18.45 0.,9787 ,0027

4.75 27.07 0.,9732 1.,0066 460 4.77 19.06 0.,9817 ,0028

4.96 27.72 0,,9768 1,,0060 480 4.98 19.68 0.,9842 ,0028

5.17 28.36 0.,9798 1..0056 500 5.19 20.30 0,,9863 ,0028

5.38 29.01 0,,9824 1,.0052 520 5.40 20.92 0,,9880 ,0027

5.59 29.66 0,,9845 1.,0049 540 5.61 21.54 0,,9895 ,0027

5.80 30.31 0,,9863 1..0047 560 5.82 22.16 0.,9908 ,0027

6.02 30.96 0..9879 1..0044 580 6.03 22.79 0.,9920 ,0027

6.23 31.62 0,.9893 1,.0042 600 6.24 23.42 0,,9930 .0026

6.75 33.27 0,.9919 1 .0038 650 6.76 25.00 0.,9949 .0025

7.27 34.94 .9938 1 .0035 700 7.28 26.60 0,.9963 .0024

7.81 28.22 0.9974 1.0023

8.33 29.86 0.9982 1.0022

9.37 33.19 0.9993 1.0020

10.41 36.60 1.0000 1.0018

40
P = 1 . MPa

X = 0.05

V H dm^mol"! kJ mol~i

X 0.10

<})2

3.61

3.81

4.00

18

36

54

72

90

33

76

48.51

49.34

50.14

50. 92

51.70

52.46

53.22

53.98

55.87

57.76

0.9407

0.9505

0.9582

0.9644

0.9694

0.9735

0.9769

0.9797

0.9851

0.9888

0897

0685

0537

0431

0352

0293

0247

0211

0149

0112

T V H (1)1 K diT)3mol-l kJ mol-1

460 3.64 46.63 0.9419 1, 480 3.83 47.43 0.9514 1 500 4.02 48.20 0.9589 1 520 4.20 48.96 0.9649 1, 540 4.38 49.72 0.9698 1, 560 4.56 50.47 0.9738 1, 580 4.73 51.21 0.9771 1, 600 4.91 51.96 0.9799 1 650 5.34 53.82 0.9852 1 700 5.77 55.70 0.9889 1,

6.24 36.63 0.9941 1,0040 750

6.65 38.34 0.9955 1.0037 800

7.49 41.83 0.9973 1.0032 900

8.32 45.41 0.9985 1.0028 1000

02

0717

0559

0447

0365

0303

0255

0218

0189

0137

0106

6,19 59.68 0. 9914 1 0089 750 6.19 57.59 9915 1 0085

6.61 61.61 0. 9933 1 0073 800 6.62 59.50 9934 1 0071

7.03 63.56 0. 9948 1 0062 850 7.04 61.43 9948 1 0061

7.46 65.55 0. 9958 1 0054 900 7.46 63.39 9959 1 0054

8.30 69.60

X =

0.

.20

9974 1 0044 1000 8.30 67.40

X = 0. 40

9974 1 0044

V H <1)1 $2 T V H *1 (t)2 dm^mol"! kJ mol~1 K dm^mol"! kJ mol-1

440 3.57 34.30 9481 1 0234

3.69 42.81 0. 9458 1 0464 460 3.75 34.98 9559 1 0198

3.87 43.55 0. 9543 1 0376 480 3.93 35.67 9622 1 0171

4.05 44.29 0. 9611 1 0311 500 4.10 36.35 9674 1 0149

4.23 45.01 9666 1 0261 520 4.27 37.03 9717 1 0132

4.40 45.74 9711 1 0223 540 4.44 37.72 9753 1 0118

4.58 46.46 9748 1 0193 560 4.61 38.40 9783 1 0107

4.75 47.19 9780 1 0168 580 4.79 39.09 9808 1 0098

4.93 47.91 9806 1 0149 600 4.96 39.78 9830 1 0090

5.35 49.73 9856 1 0114 650 5.38 41.51 9873 1 .0075

5.78 51.55 9891 1 0091 700 5.80 43.25 9903 1 .0064

6.20 53.40 9916 1 0076 750 6.22 45.02 9925 1 .0057

6.63 55.27 9935 1 .0065 800 6.64 46.81 .9941 1 .0051

7.47 59.08 9959 1 .0051 900 7.48 50.46 .9963 1 .0042

8.30 63.00

X = .60

9974 1 .0043 1000 8.32 54.21

X = 0. 80

.9977 1 .0036

V H ^1 (?2 T V H <fl <j)2 dm^mol"! kJ mol" 1 K dm^mol"! kJ mol-1

3.62 26.40 9611 .0091 440 3.65 18.43 .9735 .0034

3.79 27.04 9665 .0083 460 3.82 19.05 .9772 .0035

3.96 27.69 9711 .0076 480 3.99 19. 67 .9803 .0035

4.13 28.34 .9748 .0071 500 4.15 20.29 .9829 .0035

4.30 28.99 .9780 .0066 520 4.32 20. 91 .9851 .0035

4.47 29.64 .9807 .0062 540 4.49 21.53 .9870 .0034

4.64 30.29 .9829 .0059 560 4.66 22.16 .9886 .0034

4.81 30.95 .9849 .0056 580 4.83 22.78 .9900 .0033

4.98 31.61 .9866 .0053 600 4 .99 23.41 .9912 .0033

5.40 33.26 .9899 .0048 650 5.41 25.00 .9937 .0032

5.82 34.93 .9923 .0044 700 5.83 26. 60 .9954 .0030

6.25 28.22 0.9968 1.0029

6.66 29.86 0.9978 1.0027

7.50 33.19 0.9992 1.0025

8.33 36.60 1.0000 1.0022

41
P = 1.5 MPa

X = .05 X = 0. 10

V H (?1 <t)2 T V H (t>l (])2 dm^mol-l kJ mol~ 1 K dm^mol"! kJ mol-1

2.468 48.91 0,.9251 1..1130 480 2.495 47.07 0,.9267 1..0904

2.605 49.78 0..9370 1.,0868 500 2.626 47.90 0..9381 1..0711

2.736 50.62 0,.9464 1..0686 520 2.754 48.71 0,.9472 1,.0573

2.864 51.43 0,.9540 1..0554 540 2.880 49.49 0,.9546 1,.0472

2.989 52.23 0,.9602 1..0456 560 3.00 50.27 0..9606 1..0395

3.11 53.02 0,.9653 1,.0382 580 3.12 51.03 0,.9657 1..0336

3.23 53.79 0.,9696 1..0325 600 3.24 51.80 0..9699 1,.0289

3.53 55.72 0,.9777 1,.0228 650 3.54 53.69 0,.9778 1,.0209

3.82 57.65 0..9832 1,.0171 700 3.83 55.59 0,.9833 1,.0160

4.11 59.58 0,.9872 1,.0135 750 4.11 57.50 0,.9872 1..0129

4.39 61.53 0..9900 1,.0110 800 4.40 59.42 0,.9900 1,.0107

4.68 63.50 0,,9922 1,.0094 850 4.68 61.37 0,.9922 1,.0092

4.96 65.49 0..9938 1,.0082 900 4.97 63.34 0,.9938 1,.0081

5.24 67.51 0,.9951 1,.0073 950 5.25 65.33 0,.9951 1 .0073

5.52 69.55

X =

0,

.20

.9961 1,.0066 1000 5.53 67.36

X = 0.

0,

40

.9961 1 .0066

V H <!>i <J,2 T V H <j)l (1)2 dm^mol"! kJ mol~1 K dm^mol"! kJ mol-1

460 2.475 34.84 0,.9341 1,.0305

2.54 43.30 0,,9314 1..0590 480 2.595 35.54 0,.9435 1,.0262

2.66 44.07 0,.9416 1,.0484 500 2.713 36.24 0,.9512 1,.0229

2.79 44.82 0..9499 1,.0404 520 2.830 36.93 0,.9576 1..0202

2.91 45.57 0..9566 1,.0343 540 2.947 37.62 0,.9630 1..0181

3.03 46.31 0..9623 1,.0295 560 3.06 38.32 0,.9675 1,.0163

3.14 47.05 0..9670 1,.0257 580 3.18 39.01 0,.9713 1..0149

3.26 47.79 0,,9709 1,.0227 600 3.29 39.70 0,.9746 1,.0135

3.55 49.63 0,,9785 1..0173 650 3.58 41.45 0,.9809 1,.0113

3.84 51.47 0.,9837 1..0138 700 3.86 43.20 0,.9854 1,.0097

4.12 53.33 0.,9874 1..0115 750 4.14 44. i;o 0..9887 1..0086

4.41 55.21 0.,9902 1..0099 800 4.42 46.78 0.,9912 1,,0077

4.69 57.11 0.,9923 1,.0087 850 4.71 48.59 0.,9930 1.,0070

4.97 59.04 0.,9939 1..0078 900 4.99 50.43 0..9945 1,.0064

5.25 60.99 0.,9951 1..0070 950 5.26 52.30 0,,9956 1..0059

5.53 62.97 0.,9961 1,.0065 1000 5.54 54.19 0,,9966 1,.0055

X = 0.60

V H

dm^mol"! kJ mol~l

401

517

632

747

861

975

09

20

32

60

26.32

26.97

27.63

28.28

28.94

29.59

30.25

30.91

31.57

33.23

34.91

0.9419

0.9500

0.9568

0.9624

0.9671

0.9711

0.9745

0.9774

0.9800

0.9849

0.9885

0140

0127

0116

0108

0101

0095

0089

,0085

,0081

,0072

.0066

X = 0.80

T V H

K dm^mol"! kJ mol~l

<|)2

440

460

480

500

520

540

560

580

600

650

700

2.430

2.544

2.657

2.769

882

994

1122

,33

,61

,89

18.40

19.02

19.64

20.26

20.89

21.51

22.14

22.77

23.40

24.99

26.59

0.9605

0.9660

0.9706

0.9745

0.9778

0.9806

0.9830

0.9851

0.9870

0.9906

0.9933

0053

0053

0053

0053

0053

0052

0052

0051

0050

0048

0046

4.16 36.61 0.9912 1.0061

4.44 38.32 0.9933 1.0056

5.00 41.82 0.9960 1.0049

5.55 45.40 0.9978 1.0043

750

800

900

1000

4.17

4.45

5.00

5.56

28.21 0.9952

29.85 0.9967

33.19 0.9988

36.60 1.0001

1.0043

1.0041

1.0037

1.0033

42
2.0 MPa

X = 0.05

V H

dm^mol"! kJ mol~l

^2

.907

012

.113

.211

306

.400

.492

.583

.673

.762

850

49.40

50.30

51.16

51.99

52.80

53.60

54.40

55.18

55.97

56.75

57.53

9155

9282

9385

9468

9537

9595

9643

9684

9720

9750

9777

1253

0973

0776

0633

0526

0445

0382

0331

0291

0258

0231

K

480

500

520

540

560

580

600

620

640

660

680

700

V

dm^mol"!

824

930

032

129

225

319

411

502

592

681

769

857

X = 0.10

H kJ mol-1

46. 69

47.58

48.43

49.26

50. 06

50.85

51.63

52.41

53.18

53.95

54.72

55.49

0.9015

0.9171

9294

9393

9475

9542

0.9598

0.9646

0.9687

0.9722

0.9752

0.9778

3.12 36.59

3.33 38.31

3.75 41.81

4.17 45.39

0.9884

0.9910

0.99^18

0.9971

1.0081

1.0075

1.0065

1.0058

750

800

900

1000

43

<t>2

1305

1009

0803

0654

0544

0460

0394

0343

0301

0267

0240

0217

3.07 59.48 9829 1 0182 750 3 07 57 41 9830 1 0174

3.29 61.45 9867 1 0149 800 3 29 59 35 9867 1 0145

3.50 63.43 9896 1 0126 850 3 50 61 31 9896 1 0124

3.71 65.43 9917 1 0110 900 3 72 63 28 9918 1 0109

4.14 69.51

X = .20

9948 1 0089 1000 4 14 67

X

32

= 0. 40

9948 1 0089

V H <t>l <!,2 T V H 'I'l <))2 dm3mol~l kJ mol-1 K dm^mol"! kJ mol-1

1.869 43.04 9083 1 0825 480 1 929 35 41 9249 1 0357

1.968 43.85 9221 1 0669 500 2 020 36 12 9352 1 0311

2.063 44.63 9332 1 0555 520 2 110 36 83 9437 1 .0274

2.157 45.40 9422 1 0469 540 2 199 37 53 9508 1 .0245

2.249 46.16 9497 1 0402 560 2 287 38 23 9567 1 .0221

2.340 46.91 9560 1 0350 580 2 374 38 93 9618 1 .0201

2.430 47.66 9613 1 0308 600 2 461 39 63 9662 1 .0184

2.519 48.41 9658 1 0274 620 2 548 40 33 .9699 1 .0170

2.608 49.15 9696 1 0246 640 2 634 41 04 .9732 1 .0158

2.695 49.90 9729 1 0223 660 2 720 41 74 .9760 1 .0148

2.783 50.64 9758 1 0203 680 2 806 42 45 .9784 1 .0139

2.870 51.39 9783 1 0187 700 2 891 43 16 .9806 1 .0131

3.09 53.26 9833 1 0155 750 3 10 44 94 .9850 1 .0115

3.30 55.15 9870 1 0133 800 3 32 46 74 .9883 1 .0103

3.51 57.06 9897 1 0117 850 3 53 48 56 .9907 1 .0094

3.72 59.00 9919 1 0104 900 3 74 50 41 9927 1 .0086

4.15 62.94

X = .60

9948 1 0087 1000 4 16 54

X

17

= 0. 80

9954 1 .0074

V H <1>1 4,2 T V H <t>l <!>2 dm^mol-l kJ mol~ 1 K dm^mol"! kJ mol-1

440 1 821 18 36 9478 1 0072

1.880 26.90 9337 1 0172 460 1 907 18 99 9550 1 0072

1.967 27.56 9426 1 0158 480 1 992 19 61 9611 1 0072

2.055 28.22 9500 1 0146 500 2 077 20 24 9662 1 0072

2.141 28.88 9563 1 0136 520 2 162 20 86 9706 1 0071

2.227 29.55 9616 1 0128 540 2 246 21. 49 9743 1 0070

2.313 30.21 9661 1 0121 560 2 331 22. 12 9776 1 0069

2.399 30.87 9700 1 0114 580 2 415 22 75 9803 1 0068

2.484 31.53 9734 1 0109 600 2 500 23 39 9828 1 0067

2.697 33.20 9800 1 0098 650 2 710 24 98 9876 1 0064

2.908 34.89 9848 1 0089 700 2 919 26 59 9911 1 0061

3.13 28.21 0.9937 1.0058

3.34 29.85 0.9957 1.0055

3.75 33.19 0.9985 1.0050

4.17 36.61 1.0002 1.0045
P = 3.0 MPa

V

X = 0.05

H

0.10

dm^mol"! kJ mol~l

284

360

431

500

566

631

695

757

819

880

49.59

50.56

51.48

52.36

53.21

54.05

54.87

55.68

56.49

57.29

0.8914

0.9072

0.9199

0.9304

0.9391

0.9464

0.9527

0.9580

0.9625

0.9665

(j)2

1667

1292

1032

0845

0706

0600

0517

0452

0399

1.0356

TK

520

540

560

580

600

620

640

660

680

700

V H

dm^mol"^ kJ mol~i

306

378

446

513

578

641

704

765

826

47.85

48.76

49.63

50.47

51.29

52.10

52.90

53.70

54.49

0.8934

0.9087

0.9210

0.9312

0.9397

0.9469

0.9530

0.9583

0.9628

1.887 55.27 0.9667

2.080 36.55

2.221 38.28

2.502 41.79

2.781 45.38

0.9827

0.9867

0.9922

0.9957

1.0123

1.0114

1.0099

1.0087

750

800

900

1000

44

090

230

508

787

28.20

29.85

33. 19

36. 61

0.9908

0.9938

0.9978

1.0003

<1>2

1334

1064

0871

0728

0619

0534

0467

0413

0369

0333

2.030 59.29 0..9744 .0278 750 2,.035 57.24 0,.9745 1 .0266

2.177 61.28 0..9801 .0228 800 2 .182 59.20 0..9801 1 .0221

2.323 63.29 0..9844 .0193 850 2 .327 61.18 0,.9844 1 .0190

2.467 65.31 0..9877 .0168 900 2 .471 63.18 0,.9877 1 .0167

2.610 67.35 0,.9902 .0149 950 2 .614 65.19 .9902 1 .0149

2.753 69.41

X =

0,

.20

.9922 .0135 1000 2,.756 67.23

X = 0. 40

.9922 1 .0136

V H <1)1 (t)2 T V H <1>1 <t>2 dm^mol"! kJ mol~1 K dm^mol"! kJ mol-1

480 1,.264 35.14 0,.8881 1,.0559

1.272 43.38 0..8829 1..1086 500 1,.327 35.88 0..9033 1,.0484

1.340 44.22 0,.8997 1..0887 520 1,.389 36.61 0..9159 1,.0425

1.407 45.04 0..9134 1,.0741 540 1..450 37.34 0,.9265 1,.0379

1.472 45.84 0..9246 1,.0630 560 1,.511 38.06 0..9354 1,.0341

1.535 46.63 0..9340 1..0545 580 1..571 38.77 0..9429 1,.0310

1.598 47.40 0..9420 1..0478 600 1,.630 39.49 0,.9494 1,.0284

1.659 48.17 0,.9487 1..0423 620 1..689 40.20 0..9550 1,.0262

1.720 48.94 0,.9544 1,.0379 640 1,.748 40.91 0,.9598 1,.0243

1.781 49.70 0.,9594 1..0343 660 1..806 41.63 0,.9641 1..0227

1.840 50.46 0.,9637 1..0312 680 1..864 42.34 0,.9677 1,.0213

1.900 51.22 0.,9675 1..0287 700 1,.922 43.06 0,.9710 1,.0201

2.046 53.12 0.,9750 1,.0237 750 2,.065 44.86 0,.9775 1,.0176

2.191 55.04 0.,9805 1..0203 800 2..208 46.67 0.,9824 1..0157

2.335 56.96 0.,9846 1..0178 850 2,.350 48.51 0..9862 1..0142

2.478 58.91 0.,9878 1..0159 900 2..491 50.36 0,.9891 1,.0130

2.762 62.87

X =

0.

.60

,9923 1,.0132 1000 2,.773 54.13

X = 0.

0,

80

.9932 1,.0111

V H <t>l (t)2 T V H <))1 (j)2 dm^mol"! kJ mol~ 1 K dm^mol"! kJ mol-l

440 1..212 18.30 0.,9228 .0112

1.243 26.76 0.,9015 1..0267 460 1..270. 18.93 0,,9335 ,0112

1.303 27.43 0.,9146 1..0244 480 1..327 19.56 0.,9424 ,0111

1.362 28.11 0.,9256 1,.0226 500 1..385 20.19 0.,9501 ,0110

1.421 28.78 0,,9349 1..0210 520 1..442 20.82 0,.9565 .0109

1.480 29.45 0,.9428 1,.0197 540 1..499 21.46 0..9621 .0108

1.538 30.12 0..9495 1,.0185 560 1..555 22.09 0,.9668 .0106

1.596 30.79 0..9553 1,.0175 580 1..612 22.72 0,.9709 .0104

1.653 31.46 0,.9603 1 .0167 600 1,.669 23.36 0..9745 .0102

1.796 33.14 0,.9702 1 .0149 650 1,.809 24.96 0,.9817 .0098

1.939 34.84 .9774 1 .0135 700 1,.950 26.57 0,.9869 .0093

1.0088

1.0083

1.0075

1.0067
X = 0.05

V H (J)i dm^mol"! kJ mol~l

P = 4 . MPa

X = 0.10

02 T V H ({)i K dm^mol"! kJ mol~l

915

980

039

095

149

200

250

299

347

394

48.78

49.91

50.93

51.89

52.80

53.68

54.54

55.39

56.22

57.05

0.8536

0.8754

0.8928

0.9070

0.9187

0.9285

0.9368

0.9439

0.9501

0.9554

1.2582

1,

1,1,

1,

1,

1.

1.1.

1,

1931

1505

1210

0997

0839

0718

0624

0549

0488

520

540

560

580

600

620

640

660

680

700

0.940 47.21 0.8569

000

056

109

161

211

260

308

355

401

48.22

49.17

50.07

50. 94 51.79

52.62

53.44

54.25

55.06

0.8777

0.8944

0.9082

0.9196

0.9292

0.9374

0.9444

0.9504

0.9556

1.561 36.51

1.667 38.25

1.878 41.77

2.089 45.37

0.9771 1.0166 750 1.570

0.9824 1.0153 800 1.676

0.9898 1.0132 900 1.885

0.9944 1.0116 1000 2.094

^2

1991

1549

1245

1027

0865

0742

0645

0568

0506

1.0455

1..510 59.09 0..9658 1,.0379 750 1.516 57.,06 0..9660 1..0362

1..623 61.12 0.,9735 1,.0309 800 1.628 59.,05 0..9736 1,.0300

1,.734 63.15 0..9792 1,.0261 850 1.738 61.,05 0..9792 1,.0257

1,.843 65.19 0,,9836 1..0227 900 1.847 63.,07 0,.9836 1.,0226

1.,952 67.24 0.,9870 1..0202 950 1.955 65.,10 0,.9870 1,.0202

2,,060 69.32

X =

0.

.20

,9896 1,.0183 1000 2.063 67.

X

,15

= 0.

0.

40

.9896 1,.0183

V H <^1 (])2 T V HI <|)1 <)>2 dm^mol"! kJ moi"1 K cim3mol-l kJ mol-l

500 0.980 35.,64 0..8718 .0670

0.,978 43.79 0.,8662 .1264 520 1.028 36.,40 0,.8885 .0586

1.,031 44.67 0.,8845 .1043 540 1.076 37.,14 0,.9024 .0520

1.,083 45.51 0.,8996 .0879 560 1.123 37.,88 0,.9142 .0467

1.,133 4 6.33 0.,9121 .0755 580 1.169 38.,61 0,.9242 .0424

1.,181 47.14 0.,9227 .0659 600 1.214 39.,34 0,.9328 .0388

1,.229 47,93 0..9317 .0582 620 1.259 40.,07 0..9402 .0357

1,.276 48.72 0..9393 .0520 640 1.304 40.,79 0..9466 .0331

1..323 49.50 0..9459 .0469 660 1.349 41.,51 0..9522 .0309

1..369 50.28 0..9517 .0426 680 1.393 42.,24 0..9571 .0289

1,.414 51.05 0..9567 .0391 700 1.437 42.,96 0,.9614 .0272

1,.527 52.98 0..9666 .0323 750 1.546 44.,78 0,.9701 .0238

1..637 54.92 0,.9740 .0275 800 1.654 46.,60 0,.9767 .0212

1..746 56.86 0..9795 .0241 850 1.761 48.,45 0,.9816 .0192

1..855 58.82 0,.9838 .0215 900 1.868 50.,31 0,.9855 .0175

1..962 60.80 0..9871 .0194 950 1.974 52.,19 0,.9886 .0162

2,.069 62.80

X =

0.

.60

.9897 .0178 1000 2.080 54.

X

,10

= 0.

0,

80

.9910 .0150

V H <t>l (|)2 T V hI <fl (?2 dm^moi"! kJ mol- 1 K dm^mol"! kJ mol-l

460 0.952 18.,87 0,.9126 .0153

0,.971 27.30 0,.8872 .0335 480 0.995 19,.51 0,.9243 .0152

1..016 27.99 0,.9017 .0309 500 1.039 20..15 0,.9343 .0150

1 .061 28.67 0,.9138 .0287 520 1.082 20,.78 0..9428 .0148

1 .106 29.36 0,.9242 .0268 540 1.125 21..42 0,.9501 .0146

1 .150 30.03 0,.9331 .0252 560 1.168 22..06 0..9564 .0144

1 .194 30.71 .9408 .0238 580 1.211 22,.70 0,.9618 .0141

1 .238 31.39 .9474 .0226 600 1.253 23,.34 .9666 .0138

1 .346 33.09 .9605 .0201 650 1.359 24,.94 0,.9760 .0132

1 .454 34.79 .9700 .0182 700 1.465 26,.56 .9829 .0125

28.19 0.9880 1.0118

29.84 0.9919 1.0112

33.19 0.9973 1.0100

36.62 1.0006 1.0090

45
P == 5.0 ME'a X = 0.,05 X = 0. 10

V H ^1 4,2 T V H t)l (t>2 dm^mol"^- kJ mol-1 K dm^mol"! kJ mol"-1 0.748 49.17 0. 8430 1.,2740 540 0.771 47. 64 0. 8463 1.2129

0.802 50.33 0. 8653 1.,2072 560 0.820 48.68 0. 8676 1.1677

0.851 51.39 0.,8834 1.,1632 580 0.866 49.65 0. 8850 1.1363

0.897 52.37 0. 8982 1.,1326 600 0.910 50.57 0. 8994 1.1136

0.941 53.30 0.,9106 1.,1103 620 0.952 51.46 0.,9115 1.0966

0.983 54.21 0.,9210 1.,0937 640 0.993 52.32 0.,9217 1.0835

1.024 55.09 0.,9299 1.,0808 660 1.032 53.17 0.,9305 1.0733

1.064 55.95 0.,9376 1,,0708 680 1.072 54.01 0.,9380 1.0651

1.103 56.80 0.,9442 1.,0627 700 1.110 54.84 0.,9445 1.0584

1.198 58.89 0.,9573 1,.0485 750 1.204 56.88 0.,9575 1.0462

1.290 60.95 0.,9669 1..0394 800 1.295 58.90 0,,9670 1.0382

1.380 63.00 0.,9740 1..0332 850 1.385 60.93 0,.9741 1.0327

1.469 65.07 0.,9795 1..0288 900 1.473 62.96 0,.9795 1.0286

1.557 67.14 0,,9837 1..0256 950 1.561 65.00 0..9837 1.0256

1.644 69.23

X = 0,

0,

.20

.9871 1..0231 1000 1.647 67.07

X = 0.

0,

.40

.9871 1.0232

V H ^l (j)2 T V H <fl (])2 dm^mol"! kJ mol~1 K dm^mol"! kJ mol-]

520 0.812 36.18 0,.8614 1.0757

0.805 44.27 0..8557 .1379 540 0.851 36.95 .8786 1.0670

0.849 45.17 0,.8746 .1152 560 0.890 37.70 .8932 1.0600

0.891 46.03 0,.8903 .0982 580 0.928 38.45 0,.9056 1.0543

0.931 46.87 0,.9035 .0852 600 0.965 39.19 0,.9163 1.0496

0.971 47.69 .9147 .0750 620 1.002 39.93 .9255 1.0456

1.010 48.50 0,.9243 .0668 640 1.038 40.67 .9335 1.0422

1.048 49.30 0,.9325 .0601 660 1.075 41.40 .9404 1.0393

1.086 50.09 0,.9397 .0545 680 1.110 42.13 .9465 1.0368

1.123 50.88 .9459 .0499 700 1.146 42.86 .9519 1.0346

1.215 52.84 .9583 .0411 750 1.234 44.70 .9628 1.0302

1.305 54.80 .9675 .0350 800 1.322 46.54 .9709 1.0269

1.393 56.76 .9744 .0306 850 1.408 48.39 .9771 1.0242

1.481 58.73 0,.9798 .0272 900 1.494 50.26 .9820 1.0221

1.567 60.73 .9839 .0246 950 1.580 52.15 .9858 1.0204

1.654 62.74

X = .60

.9872 .0225 1000 1.665 54.06

X = .80

.9888 1.0189

V H ^l <t>2 T V H <t>l 02 dm^mol"! kJ mol~1 K dm^mol"! kJ mol"^L 460 0.,761 18. 81 0.,8923 1.,0196

480 0.,796 19. 46 0.,9068 1.,0194

0. 809 27. 88 0. 8782 1.,0396 500 0.,831 20. 10 0.,9190 1.,0192

0. 845 28. 57 0. 8932 1.,0367 520 0.,866 20. 74 0.,9295 1.,0189

0. 882 29. 26 0. 9060 1.,0342 540 0.,901 21. 39 0.,9385 1.,0185

0. 918 29. 95 0. 9170 1.,0321 560 0.,936 22. 03 0.,9462 1.,0182

0. 953 30.,63 0.,9265 1.,0303 580 0.,970 22.,67 0.,9530 1.,0179

0.,989 31.,32 0.,9347 1..0287 600 1.,004 23.,31 0.,9588 1,,0175

1.,077 33.,03 0.,9510 1..0255 650 1..090 24.,93 0,.9705 1,,0166

1,.163 34,.75 0,.9628 1..0230 700 1..174 26.,55 0..9790 1,.0157

1..249 36..47 0,.9716 1,.0210 750 1,.259 28..19 0,.9854 1..0149

1,.335 38,.22 0,.9782 1,.0193 800 1,.343 29,.84 0,.9902 1,.0141

1..420 39,.97 0,.9834 1 .0179 850 1,.427 31,.51 0,.9939 1,.0133

1 .504 41 .75 .9874 1 .0167 900 1 .511 33,.20 .9968 1,.0126

1 .589 43 .54 .9905 1 .0156 950 1 .595 34 .90 .9991 1,.0119

1 .673 45 .36 .9931 1 .0146 1000 1 .678 36 .62 1 .0009 1 .0113

46
X = 0.05

V H

dm^mol"! kJ mol~l

0.642

0.687

0.728

0.767

804

840

874

908

49.68

50.84

51.91

52.91

53.86

54.77

55.67

56.54

0.8375

0.8596

0.8776

0.8926

0.9052

0.9159

0.9251

0.9331

<t>2

2765

2125

1697

1396

1174

1007

0877

0774

=6.0 MPa

X = 0.10

T V H (J)! K dm^mol"! kJ mol~l

540

560

580

600

620

640

660

680

700

<t'2

0..616 47,,00 0..8145 1,.2836

0..662 48.,15 0..8406 1,.2179

0,.703 49.,20 0..8618 1..1742

0..742 50.,18 0,.8792 1,.1435

0,.779 51,, 12 0..8938 1..1210

0,.814 52,,02 0,.9061 1,.1040

0,.849 52,. 90 0,.9166 1,.0908

0,.883 53,,76 0,.9256 1..0803

0,.915 54., 61 0,.9335 1,.0718

0..996 56., 69 0..9490 1..0566

.073 58.,75 0,.9604 1,.0467

.149 60,,80 0,,9689 1..0398

,224 62,,85 0..9754 1..0348

.297 64,, 91 0,.9805 1..0311

.370 66,,98 0.,9845 1..0282

0.990

1.068

1.145

1.220

1.294

1.367

58.68

60.78

62.86

64.94

67.03

69.14

0.9488

0.9603

0.9689

0.9754

0.9805

0.9845

0595

0481

0405

0351

0311

0281

750

800

850

900

950

1000

X = 0.20

V H

dm^mol"! kJ mol~l

(j)2 0.40

T V H

K dm^mol"! kJ mol~l

(j)2

520 0.,668 35.,96 0..8347 1,.0939

0,,653 43.,86 0,.8268 1.,1757 540 0..702 36.,75 0..8551 1,.0828

0.,692 44.,81 0,,8496 1.,1451 560 0..735 37.,52 0,.8724 1,.0739

0.,729 45.,72 0.,8685 1.,1228 580 0.,767 38.,29 0,.8872 1,.0667

0.,764 46,,59 0,,8843 1.,1059 600 0.,799 39.,05 0,.8999 1..0608

0.,799 47..44 0.,8977 1.,0928 620 0.,830 39.,80 0,.9109 1,,0559

0.,832 48..27 0..9092 1.,0823 640 0.,861 40.,54 0,.9204 1..0516

0.,865 49..09 0.,9191 1,,0739 660 0.,892 41.,29 0,.9287 1..0481

0.,897 49.,90 0,,9277 1.,0669 680 0.,922 42.,03 0,.9360 1..0449

0..929 50.,70 0,,9351 1..0611 700 0.,952 42.,77 0,.9425 1..0422

1.,007 52.,70 0.,9501 1.,0502 750 1.,027 44.,62 0,.9555 1,.0368

1.,083 54.,68 0.,9611 1.,0427 800 1.,100 46. 47 0,.9652 1,.0326

1.,158 56.,66 0,,9694 1.,0372 850 1.,173 48. 33 0,.9727 1..0294

1.,231 58.,65 0,.9758 1.,0331 900 1.,245 50. 21 0,.9784 1,.0268

1.,304 60.,65 0..9807 1.,0298 950 1.,316 52.,11 0,.9830 1,.0246

1.,377 62.

X

,67

=

0.

.60

.9847 1.,0273 1000 1.,388 54.

X

,03

= 0.

0,

80

.9866 1,.0228

V H <?1 <t)2 T V H[ <!>i <!)2 dm^mol-l kJ rnol" 1 K dm^mol-l kJ mol-1

460 0.,634 18.,76 0,.8727 1,,0241

480 0.,664 19. 41 0,.8897 1,.0238

0.,671 27,.76 0..8552 1..0486 500 0..693 20,,06 0..9042 1,.0234

0,,702 28,,47 0..8730 1,,0449 520 0,,723 20,,71 0,,9165 1,.0230

0,.733 29,,17 0..8881 1,,0418 540 0,.752 21.,35 0,,9272 1,.0226

0..763 29,,86 0,.9012 1,,0392 560 0,.781 22.,00 0,,9364 1,,0221

0,,793 30,,56 0..9124 1,,0370 580 0,,810 22.,64 0,,9443 1.,0217

0,.823 31,,25 0..9222 1,,0350 600 0.,838 23.,29 0,,9513 1..0212

0,.897 32,.97 0,.9416 1,.0310 650 0,.910 24,, 91 0,,9651 1,.0201

0,.970 34,.70 0,.9557 1,.0279 700 0,.981 26.,54 0,.9752 1,.0190

1 .042 36 .44 .9662 1 .0254 750 1,.051 28,.18 .9828 1..0180

1 .113 38 .19 .9741 1 .0233 800 1 .122 29,.84 .9885 1 .0170

1 .184 39 .95 .9802 1 .0216 850 1 .192 31 .51 .9929 1 .0160

1 .255 41 .73 .9850 1 .0201 900 1 .262 33 .20 .9964 1 .0152

1 .326 43 .53 .9888 1 .0188 950 1 .332 34 .91 .9991 1 .0143

1 .396 45 .35 .9918 1 .0176 1000 1 .401 36 . 63 1 .0012 1 .0136

47
P = 8.0 MPa X = .05 X = 0. 10

V H 01 (1)2 T V K[ <!)i <J>2 i^mol"! kJ mol~1 K dm^mol"! kJ mol-l

560 0,,460 46.,98 0,.7857 1,.3479

0..478 49.,62 0,,8112 1,,3411 580 0,.497 48.,24 0,.8149 1,.2667

0..515 50., 91 0.,8360 1,,2610 600 0,.531 49.,36 0,.8386 1,.2136

0..549 52,,05 0,.8564 1,,2085 620 0,.562 50.,41 0,.8582 1,.1766

0,,580 53.,12 0,.8734 1,,1719 640 0,.591 51,,39 0,.8748 1,.1496

0., 609 54,,12 0,.8878 1,,1452 660 0..619 52,,34 0,.8888 1,.1292

0..637 55,,08 0,.9002 1,,1251 680 0,.646 53.,25 0,.9009 1,.1134

0..664 56,,01 0,.9108 1,,1095 700 0,.672 54.,15 0,.9114 1..1008

0,.729 58,,26 0,.9318 1,.0829 750 0,.735 56.,32 0,.9321 1,.0787

0..791 60.,43 0,.9471 1,.0666 800 0,.796 58.,44 0,.9473 1,.0645

0,.850 62..57 0,.9586 1..0557 850 0,.855 60,,54 0,.9586 1,.0547

0..908 64..69 0..9673 1,.0481 900 0,.912 62,,62 0,.9673 1 .0477

0,.965 66,.82 0,.9741 1,.0426 950 0,.968 64..71 .9741 1 .0425

1,.021 68,.95 0,.9794 1,.0383 1000 1,.024 66,.81 .9794 1 .0384

X = 0.20

V H (|)i dm^mol"! kJ mol~l

<}>2

0.496

0.526

0.555

,583

,610

,636

,662

.686

44.06

45.06

46.01

46.92

47.81

48.67

49.52

50.35

0.7998

0.8251

0.8462

0.8641

0.8793

0.8924

0.9038

0.9137

2145

1783

1518

1317

1161

1036

0934

0850

K

540

560

580

600

620

640

660

680

700

X = 0.40

V H

dm^niol"! kJ mol~l

02

0.515

0.541

0.566

0.591

0.616

0.640

0.664

0.687

0.710

36.34

37.16

37.96

38.75

39.53

40.29

41.06

41.82

42.57

0.8092

0.8318

0.8511

0.8677

0.8821

0.8947

0.9056

0.9153

0.9238

1167

1037

0932

0846

0775

0714

0663

0619

0580

0.747

0.806

863

,920

,975

,030

52.41

54.43

56.45

58.47

60.50

62.54

0.9336

0.9482

0.9593

0.9678

0.9744

0.9797

0694

0587

0510

0452

0407

0371

750

800

850

900

950

1000

0.767

0.823

0.879

0.933

0.988

1.042

44.45

46.33

48.22

50.12

52.03

53,. 96

0.9410

0.9539

0.9638

0.9715

0.9775

0.9824

0503

0445

0400

0363

0333

0308

X = 0.60

V H (f)! dm^mol"! kJ mol"l

0.522

0.546

0.570

0.593

0.616

0.638

0.661

0.683

0.706

0.728

28.26

28.98

29.70

30.41

31.11

31.81

32.51

33.21

33.91

34.61

0.8338

0.8534

0.8704

0.8850

0.8978

0.9090

0.9188

0.9274

0.9350

0.9417

(j)2

0622

0577

0540

0508

0479

0455

0432

,0413

,0395

,0379

TK

480

500

520

540

560

580

600

620

640

660

680

700

X = 0.80

V H dm^mol"! kJ mol~l

0.498 19.32

0.521

0.543

0.565

0.587

0.609

0.631

0.653

0. 674

0.696

0.717

0.739

19.98

20.63

21.29

21.94

22.60

23.25

23.90

24.55

25.21

25.86

26.52

0.8572

0.8758

0.8917

0.9055

0.9174

0.9278

0.9368

0.9447

0.9517

0.9578

0.9633

0.9681

0328

0322

0315

0309

0302

0295

0289

0282

0276

0269

0263

0257

0.782

0.937

0.890

0.944

0. 997

1.050

36.37

38.13

39.91

41. 69

43.50

45.33

0.9555

0.9660

0.9741

0.9804

0.9854

0.9894

0344

0316

0291

0271

0253

0237

750

800

850

900

950

1000

0.792 28.17

0.845 29.83

0.898

0.950

1.003

1.055

31.51

33.21

34.92

36.65

0.9780

0.9855

0.9912

0.9957

0.9993

1.0020

,0242

,0229

,0216

,0204

,0192

,0182

48
V

X = 0.05

H dm^mol"! kJ mol"l

348

385

416

444

470

495

48.14

49.75

51.11

52.31

53.42

54.47

0.518 55.46

0.7612

0.7938

0.8199

0.8416

0.8597

0.8753

0.8886

<|>2

1.5362

10.0 MPa

X = 0.10

T V H K dm^mol"! kJ mol"l

3849

2959

2378

1973

1678

1455

580

600

620

640

660

680

700

0.371 47.13

0.402

0.430

0.456

0.480

0.504

0.526

48.46

49.64

50.72

51.75

52.72

53.67

0.7672

0.7977

0.8226

0.8435

0.8612

0.8763

0.8894

0.627

0.671

0.714

0.757

0.800

0.843

36.30

38.08

39.86

41.66

43.48

45.31

9453

9582

9682

9760

9822

9871

0437

0399

0368

0342

0318

0298

750

800

850

900

950

1000

49

0.636

0.679

0.721

0.763

0.806

0.848

28. 16

29.83

31.52

33.21

34. 93

36.66

0.9735

0.9827

0.9898

0.9953

0.9996

1.0030

(j)2

3908

3018

2435

2028

1730

1505

1328

0.540 56„43 0..9002 .1281 720 0.548 54.,59 0,.9008 1,.1188

0.562 57.36 0..9103 .1143 740 0.569 55.,49 0,.9108 1,.1074

0.583 58.28 0,.9192 .1032 760 0.589 56.,38 0,.9196 1,.0980

0.604 59.19 0,,9270 .0940 780 0.610 57,,26 0,.9273 1,.0901

0.624 60.08 0,.9340 .0863 800 0.629 58..13 0,.9342 1,.0834

0.673 62.27 0,.9483 .0719 850 0.678 60,,27 .9484 1 .0705

0.721 64.44 0,.9592 .0618 900 0.725 62,,40 0,.9593 1 .0613

0.767 66.60 0..9677 .0545 950 0.771 64,,52 0,.9677 1 .0544

0.813 68.76

X = 0.

0,

20

.9743 .0490 1000 0.816 66,

X

,65

= 0.,40

.9743 1 .0491

V H i?l (t)2 T V h1 <t)l <|)2 dm^mol"! kJ mol"'L K dm^mol"! kJ mol-1

560 0.425 36.,79 0,.7923 1,.1360

0.404 44.37 0..7820 1..2439 580 0.446 37.,63 0,.8159 1,.1217

0.429 45.40 0.,8084 1..2046 600 0.467 38.,45 0..8363 1,.1100

0.453 46.39 0,,8307 1,,1756 620 0.487 39.,25 0,,854 1,.1004

0.476 47.33 0.,8497 1,.1535 640 0.507 40.,05 0,.8694 1,.0924

0.499 48.23 0.,8660 1..1361 660 0.527 40.,83 0,.8830 1..0855

0.520 49.12 0.,8802 1..1222 680 0.546 41.,61 0,.8949 1,.0796

0.541 49.99 0.,8925 1..1108 700 0.565 42.,38 0..9054 1,.0746

0.561 50.85 0.,9033 1..1013 720 0.584 43.,15 0..9147 1,.0701

0.581 51.69 0.,9129 1..0933 740 0.603 43.,91 0,.9229 1,.0662

0.601 52.53 0.,9213 1..0865 760 0.621 44.,68 0..9303 1,.0627

0.620 53.36 0.,9288 1..0807 780 0.639 45. 44 0,.9369 1,.0596

0.640 54.19 0.,9355 1,.0756 800 0.657 46.,20 0..9428 1..0568

0.687 56.24 0.,9492 1,.0654 850 0.702 48.,11 0..9551 1,.0509

0.733 58.29 0.,9598 1,.0578 900 0.747 50.,02 0..9646 1,.0461

0.778 60.34 0.,9681 1..0519 950 0.791 51.,95 0,.9722 1,.0423

0.823 62.41

X = 0.

0.

60

,9747 1..0472 1000 0.834 53.

X

,89

= 0.

0.

80

.9782 1..0390

V H <fl <t)2 T V H[ <t>l (?2 dm^inol" 1 kJ mol -1 K dm^mol"! kJ mol"-1

480 0.399 19.,23 0,.8267 1..0422

500 0.418 19.,90 0..8490 1,.0413

0.415 28.06 0,.7965 1..0803 520 0.436 20.,57 0.,8683 1..0404

0.435 28.8.0 0..8202 1..0744 540 0.454 21.,23 0..8850 1..0394

0.454 29.53 0..8408 1,.0694 560 0.472 21.,89 0..8994 1..0385

0.473 30.26 0..8587 1 .0651 580 0.489 22..55 0,.9120 1,.0376

0.492 30.98 0,.8743 1 .0614 600 0.507 23,.21 0,.9231 1,.0367

0.538 32.76 0..9054 1 .0539 650 0.550 24..85 .9452 1,.0346

0.583 34.53 .9282 1 .0482 700 0.594 26,.50 .9614 1,.0325

0306

,0288

,0272

,0256

,0242

,0229
P = 15 MPa

X = 05 X = 0. 10

V H <!)i ^2 T V H <l)l ^2 dm^mol" 1 kJ mol-1 K dm^mol" ^ kJ mol-1

•

600 0.2252 45.69 6931 1 6640

0.2312 48.15 7264 1 6683 620 0.2516 47.41 7331 1 4868

0.2586 49.96 7611 1 4834 640 0.2742 48.86 7654 1 .3820

0.2816 51.45 7894 1 3761 660 0.2944 50.13 7923 1 .3131

0.302 52.77 8131 1 3062 680 0.313 51.31 8152 1 .2645

0.321 53.98 8333 1 2573 700 0.330 52.40 8349 1 .2286

0.339 55.10 8508 1 2215 720 0.347 53.45 8519 1 .2012

0.355 56.17 8660 1 1943 740 0.363 54.46 8669 1 1796

0.371 57.20 8793 1 1730 760 0.378 55.43 8800 1 1622

0.387 58.19 8911 1 1559 780 0.393 56.38 8916 1 1479

0.402 59.16 9015 1 1420 800 0.407 57.32 9019 1 1360

0.437 61.52 9228 1 1164 850 0.442 59.60 9230 1 .1135

0.471 63.80 9392 1 0991 900 0.476 61.83 9393 1 .0977

0.504 66.06 9518 1 0867 950 0.508 64.03 9519 1 .0862

0.536 68.29

X = 20

9618 1 0775 1000 0.540 66.22

X = 0. 40

9618 1 .0773

V H <|)1 (1>2 T V H ^l $2

dm^mol"! kJ mol" 1 K dm^mol"! kJ mol-l

580 0.287 36.80 7329 1 .2017

0.261 43.76 7156 1 3758 600 0.302 37.70 7617 1 .1806

0.280 44.96 7488 1 3119 620 0.317 38.57 7869 1 .1635

0.298 46.06 7770 1 2661 640 0.331 39.43 8090 1 .1494

0.315 47.11 8012 1 2318 660 0.345 40.26 8285 1 .1376

0.331 48.10 8221 1 2051 680 0.359 41.09 8457 1 .1275

0.347 49.06 8403 1 .1840 700 0.372 41.90 .8609 1 .1189

0.362 50.00 8563 1 .1667 720 0.385 42.70 .8745 1 .1113

0.376 50.91 8704 1 .1525 740 0.398 43.50 .8866 1 .1047

0.391 51.81 8829 1 .1405 760 0.411 44.30 .8974 1 .0989

0.405 52.69 8940 1 .1303 780 0.424 45.09 .9070 1 .0937

0.418 53.57 9040 1 .1215 800 0.437 45.87 .9157 1 .0891

0.452 55.72 9245 1 .1042 850 0.468 47.83 .9338 1 .0794

0.484 57.85 9403 1 .0914 900 0.498 49.79 .9480 1 .0717

0.515 59.96 9526 1 .0816 950 0.528 51.75 .9591 1 .0654

0.546 62.08

X = .60

9624 1 .0739 1000 0.558 53.72

X = 0. 80

.9680 1 .0601

V H <fl <}>2 T V H <t)l <t»2 dm^mol-l kJ mol"1 K dm^mol"! kJ mol-l

287

301

314

327

340

352

365

377

390

28.37

29.14

29.90

30.65

31.40

32.14

32.87

33.60

34.33

0.7440

0.7723

0.7972

0.8191

0.8385

0.8556

0.8707

0.8842

0.8962

1.1187

1.1102

1.1030

1.0967

0913

0865

0822

0783

0749

500

520

540

560

580

600

620

640

660

680

700

0.281

0.293

306

318

330

342

0.354

0.365

0.377

0.389

0.400

19.73

20.42

21.10

21.78

22.45

23.12

23.79

24.46

25.13

25.80

26.47

0.7890

0.8154

0.8384

0.8585

.8762

,8918

,9054

,9175

0.9282

0.9378

0.9463

0652

0635

0618

0602

0586

0571

0556

0541

0527

0514

0501

,420

.450

.479

.508

.537

.566

36.14

37.95

39.77

41.59

43.42

45.27

0.9208

0.9397

0.9543

0.9657

0.9747

0.9820

0675

0615

0565

0523

0486

0454

750

800

850

900

950

1000

50

429

458

486

514

543

571

28.15

29.84

31.53

33.24

34.97

36.71

0.9637

0.9769

,9871

.9950

.0012

.0061

0469

0441

0415

0390

0368

0347
X = 0.05

V H <t)i dm^mol"! kJ mol~l

0.1590 46.79 0.6780

0.1838 49.05 0.7184

0.2038 50.81 0.7511

0.2212 52.31 0.7785

<|)2

1.9872

1.6772

1.5143

1.4135

P = 20 MPa

T V

X = 0.10

H K dm^mol"! kJ mol~l

620 0.1577 44.58 0.6415

640 0.1807 46.65 0.6873

660 0.1999 48.31 0.7242

680 0.2167 49.74 0.7550

700 0.2321 51.04 0.7813

0.317

0.340

0.362

0.384

0.406

0.428

36.00

37.84

39.68

41.52

43.37

45.24

0.8982

0.9225

0.9414

0.9562

0.9680

0.9774

0923

0838

0769

0709

0658

0614

750

800

850

900

950

1000

51

0.326

0.347

0.369

0.390

0.411

0.432

28.15

29.85

31.55

33.27

35.01

36.76

0.9553

0.9723

0.9854

0.9956

1.0036

1.0099

^2

1.9478

1.6703

1.5171

1.4200

1.3531

0.237 53.65 0.,8020 ,3452 720 0.246 52.24 0,.8039 .3045

0.251 54.88 0..8222 ,2960 740 0.260 53.36 0,.8237 .2676

0.265 56.04 0.,8400 ,2592 760 0.272 54 .44 0..8411 .2388

0.278 57.15 0..8556 ,2306 780 0.285 55.48 0..8564 .2157

0.290 58.21 0..8694 ,2078 800 0.296 56.49 0..8700 .1968

0.319 60.74 0..8977 ,1673 850 0.325 58.91 0,.8981 .1619

0.347 63.15 0..9194 ,1408 900 0.351 61.25 0,.9196 .1381

0.373 65.50 0,.9362 ,1222 950 0.377 63.54 0,.9363 .1209

0.398 67.81

X =

0.

.20

.9495 ,1084 1000 0.401 65.80

X = 0.

0,

40

.9495 .1078

V H <t)l <t,2 T V H <|)1 <t>2 dm3mol-l kJ mol- 1 K dm3inol-l kJ mol-1

580 0.2079 35.99 .6578 .2938

600 0.2203 36.97 .6935 .2607

0.1931 43.41 0,.6701 .4978 620 0.2322 37.91 .7251 .2343

0.2088 44.73 0,.7071 .4122 640 0.2436 38.82 .7529 .2128

0.2234 45.93 0,.7387 .3513 660 0.2548 39.71 .7776 .1949

0.2370 47.05 0,.7660 .3059 680 0.2656 40.58 .7995 .1798

0.2499 48.11 0,.7898 .2709 700 0.2763 41.43 .8190 .1670

0.262 49.13 .8108 .2431 720 0.287 42.28 .8364 .1559

0.274 50.12 .8292 .2205 740 0.297 43.11 .8520 .1462

0.286 51.08 .8456 .2018 760 0.307 43.93 .8660 .1377

0.297 52.02 .8602 .1861 780 0.317 44.75 .8785 .1301

0.308 52.95 .8732 .1728 800 0.327 45.56 .8898 .1234

0.334 55.20 0,.9002 .1467 850 0.350 47.57 .9135 .1094

0.360 57.41 0,.9211 .1278 900 0.374 49.57 0,.9320 .0984

0.384 59.59 0,.9375 .1135 950 0.397 51.57 .9467 .0895

0.408 61.75

X =

0,

.60

.9505 .1022 1000 0.420 53.57

X = 0.

0,

80

.9584 .0821

V H <|)1 <|)2 T V H <t)l 4)2 dm^inol"^ kJ mol~ 1 K dm3mol-l kJ mol-1

520 0.2225 20.29 0,.7698 .0878

540 0.2319 20.99 0,.7980 .0853

0.2247 28.78 0,.7118 1..1537 560 0.2411 21.68 0,.8228 .0829

0.2351 29.58 0,.7423 1,.1432 580 0.2503 22.37 0..8448 .0805

0.2452 30.36 0..7694 1,.1341 600 0.2594 23.05 0,.8642 .0783

0.2552 31.13 0,.7936 1,.1262 620 0.2684 23.74 0..8814 .0761

0.2650 31.89 0,.8150 1,.1193 640 0.2773 24 .42 0..8967 .0740

0.2747 32.65 .8342 1 .1132 660 0.2862 25.09 0,.9102 .0720

0.2842 33.40 .8512 1 .1077 680 0.2951 25.77 0,.9223 .0700

0.2937 34.14 .8665 1 .1028 700 0.3039 26.45 .9331 .0682

1.0638

1.0598

1.0561

1.0527

1.0496

1.0468
P = 25 MPa

X = .05 X = 0. 10

V H 4>i <|)2 T V hI <1>1 <D2

,m-?mol-l kJ mol- 1 K dm3mol-1 kJ mol-l

0,.0891 41,.80 0,.5869 3,.5560 640 0,,1230 44,.01 0,.6091 2,.1737

0..1214 45,.96 0,.6460 2,.2647 660 0,.1424 46,.25 0,.6570 1,.8263

0,.1430 48,.49 0,.6893 1 .8495 680 0.,1586 48,.04 0,.6960 1,.6361

0..1604 50 .43 0,.7244 1 .6394 700 0.,1729 49,.58 0,.7289 1,.5165

0,.1753 52 .06 0,.7539 1 .5121 720 0.,1859 50,.96 0,.7571 1,.4345

0,.1887 53 .50 0,.7793 1 .4269 740 0.,1979 52..23 0,.7816 1,.3750

0,.2010 54 .82 0,.8013 1 .3662 760 0,,2091 53..42 0,.8031 1,.3301

0,.2126 56 .05 0,.8207 1,.3207 780 0,,2198 54,.55 0,.8221 1,.2949

0,.2234 57 .22 0..8379 1,.2856 800 0.,2300 55..64 0,.8389 1 .2667

0,.2487 59,.94 0..8731 1,.2252 850 0,,2541 58,.22 0,.8736 1 .2160

0,.2720 62,.49 0,.8999 1,.1871 900 0..2766 60,.67 0,.9003 1 .1823

0,.2939 64,.94 0,.9209 1,.1609 950 0,.2979 63,.04 .9210 1 .1584

0,.3149 67,.33 0,.9374 1,.1418 1000 0..3184 65,.37 .9375 1 .1405

X = 0.20

V H <t)i dm^mol-l kJ mol-l

<t'2

X = 0.40

T V H (|)i K din3mol-l kJ mol-l

X = 0.60

V H <t)i dm^mol-l kJ mol-l

<|>2 X = 0.80

T V H 4)1 K dm^mol-l kJ mol-l

<t)2

0,.1254 39 .98 0,.5424 1 .9944 600 .1723 36 .28 .6323 1 .3495

0,.1416 41,.79 0,.5959 1 .7503 620 0,.1823 37 .28 .6688 1 .3120

0,.1559 43,.34 0..6408 1 .6002 640 0,.1919 38,.25 0,.7014 1,.2818

0..1689 44,.72 0..6792 1,.4993 660 0,.2013 39,.19 0,.7305 1,.2569

0,.1810 45,.97 0..7124 1,.4272 680 0,.2103 40,.10 0,.7565 1,.2361

0..1923 47,.15 0..7415 1,.3732 700 0,.2192 40,.99 0,.7797 1..2185

0..2030 48..26 0.,7670 1,.3313 720 0..2278 41,.86 0..8006 1,.2033

0,.2132 49..33 0,,7895 1,.2980 740 0,.2363 42,.73 0..8194 1..1902

0,.2231 50..35 0,,8096 1,.2708 760 0,.2446 43,.58 0..8362 1..1787

0..2327 51..35 0,,8274 1,.2483 780 0..2528 44,.42 0,.8514 1..1686

0..2419 52..32 0.,8434 1,.2293 800 0,.2608 45,.25 0,.8651 1..1596

0..264 54,.68 0.,8767 1,.1929 850 0,.280 47,.32 0,.8940 1..1408

0..285 56,.97 0,.9024 1,.1669 900 0,.300 49,.36 0,.9167 1..1262

0,.305 59,.21 0,,9227 1,.1473 950 0,.318 51,.39 0,.9347 1..1144

0.,325 61,.43 0.,9388 1,.1322 1000 0,.337 53,.42 0,.9491 1..1047

(|)2

520 0..1805 20.,19 0,,7308 ,1133

540 0..1881 20.,90 0.,7631 ,1098

0.,1800 28. 46 0.,6589 ,1992 560 0..1956 21.,61 0.,7918 ,1064

0.,1884 29.,28 0..6938 ,1851 580 0..2030 22.,31 0.,8174 ,1032

0.,1967 30.,09 0.,7250 ,1731 600 0.,2103 23.,00 0.,8401 ,1002

0..2049 30.,89 0.,7531 ,1626 620 0.,2176 23,,69 0.,8603 ,0973

0.,2129 31.,67 0.,7782 ,1535 640 0.,2248 24.,38 0,.8784 ,0945

0,,2208 32.,45 0.,8008 ,1454 660 0.,2320 25.,07 0,,8945 ,0918

0..2286 33.,21 0..8210 ,1381 680 0.,2391 25..75 0,,9088 .0892

0,,2363 33.,98 0,.8392 ,1316 700 0..2462 26 .44 0..9217 .0867

.255 35 .86 .8772 .1179 750 .264 28 .15 .9483 .0810

.274 37 .73 .9065 .1068 800 .281 29 .86 .9687 .0758

.292 39 .60 .9294 .0977 850 .298 31 .58 .9845 .0710

.310 41 .46 .9475 .0900 900 .315 33 .31 .9968 .0667

.328 43 .33 .9618 .0834 950 .332 35 .05 1 .0065 .0627

.345 45 .21 .9733 .0777 1000 .349 36 .81 1 .0141 .0591

52
X = 0.05

V H (t)i dm^mol"! kJ mol~l

0.0777 41.98 0.5715

0.1014 45.76 0.6276

0.1193 48.33 0.6710

P = 30 MPa

X = 0.10

T V H 4)1 K dm3mol~l kJ mol~l

3.620 660 0.1043

2.432 680 0.1201

1.978 700 0.1337

43.97 0.5916

46.21 0.6388

48.04 0.6781

0.214

0.230

0.245

0.260

0.275

0.290

35.74

37.64

39.53

41.41

43.30

45.19

0.8577

0.8917

0.9183

0.9394

0.9562

0.9697

1441

1303

1190

1095

1013

0943

750

800

850

900

950

1000

0.222

0.237

0.251

0.266

0.280

0.294

28.16

29.89

31.62

33.36

35.10

36.87

0.9425

0.9661

0.9844

0.9987

1.0100

1.0188

<t>2

2.305

1.940

1.732

0.,1340 50.34 0,.7068 .7417 720 0.,1458 49.63 0.,7117 .5981

0.,1469 52.04 0..7373 .5969 740 0.,1569 51.06 0.,7407 .5058

0.,1584 53.54 0,.7636 .4995 760 0.,1671 52.37 0..7662 .4383

0.,1690 54.92 0..7867 .4298 780 0.,1768 53.61 0,.7887 .3870

0.,1790 56.20 0..8071 .3775 800 0.,1860 54.78 0..8086 .3468

0.,2016 59.13 0,.8489 .2909 850 0..2073 57.52 0..8497 .2762

0,,2222 61.82 0,.8809 .2382 900 0..2270 60.08 0..8813 .2306

0..2414 64.37 0..9058 .2029 950 0..2455 62.55 0..9061 .1987

0.,2596 66.85

X =

0,

.20

.9255 .1777 1000 0..2633 64 .95

X = 0.

0,

40

.9256 .1753

V H <!>1 (t)2 T V H <t>l ^2 dm^>mol-l kJ mol- 1 K dm3mol-1 kJ mol-l

620 0..1499 36.70 0,.6184 1,.3958

0,.1217 41.96 0,.5794 .8373 640 0,.1582 37.71 0,.6547 1 .3558

0,.1334 43.51 0,.6236 .6798 660 0..1662 38.69 0,.6874 1,.3231

0,.1443 44.91 0,.6620 .5711 680 0..1740 39.64 0,.7168 1 .2959

0..1544 46.19 0,.6956 .4920 700 0..1816 40.57 0,.7433 1 .2730

0..1639 47.40 0,.7253 .4321 720 0..1890 41.48 0,.7 672 1 .2534

0..1730 48.54 0,.7516 .3853 740 0..1963 42.37 0,.7887 1,.2365

0,.1817 49.63 0,.7750 .3477 760 0..2034 43.24 0,.8082 1 .2217

0,.1901 50.69 0,.7959 .3169 780 0..2104 44.11 0,.8258 1,.2088

0,.1982 51.71 .8147 .2913 800 0,.2173 44 .97 0,.8417 1 .1973

0,.2175 54.17 .8538 .2427 850 0,.2340 47.08 0,.8754 1 .1735

0,.2358 56.54 .8843 .2085 900 0,.2504 49.16 .9021 1 .1550

0,.2533 58.84 .9083 .1831 950 0,.2663 51.22 0,.9233 1 .1402

0,.2702 61.11

X = .60

.9274 .1636 1000 0,.2819 53.28

X = 0. 80

.9403 1 .1280

V H <t)l <t)2 T V H <t)l <t,2 dm^mol"! kJ mol~ 1 K dm3mol-1 kJ mol-l

540 0,.1592 20.84 .7331 .1352

560 0,.1655 21.55 .7650 .1309

0,.1579 29.03 .6511 .2286 580 0,.1717 22.26 .7935 .1267

0,.1649 29.86 .6856 .2134 600 .1778 22.96 .8190 .1228

0,.1718 30.67 .7168 .2003 620 0,.1839 23.66 0,.8419 .1191

0,.1786 31.47 .7450 .1887 640 0,.1899 24.36 0,.8624 .1155

0,.1853 32.27 .7705 .1786 660 0,.1959 25.05 0,.8807 .1121

0,.1919 33.05 .7934 .1695 680 0,.2019 25.75 0,.8972 .1089

0,.1984 33.83 .8142 .1613 700 0,.2078 26.44 0,.9119 .1058

0986

0921

0862

0809

0760

0715

53
X = 0.05

V H <t)i dm^mol"! kJ mol"l

P = 40 MPa

X = 0.10

<|>2 T V H (t)i K dm^mol"! kJ mol"!

<))2

0..0439 36.,44 0.,4507 8.,034 660 0.,0630 39.,71 0.,4772 3.,892

0.,0560 40..26 0.,5142 4.,809 680 0.,0754 42.,55 0.,5348 2..898

0.,0704 43.,80 0.,5704 3.,230 700 0.,0869 44,,93 0.,5844 2..366

0..0838 46,.64 0.,6175 2..493 720 0.,0974 46.,95 0..6270 2..053

0.,0955 48,.94 0..6574 2..105 740 0.,1069 48.,70 0..6641 1..8528

0.,1059 50,.87 0..6918 1..8724 760 0.,1157 50.,28 0..6966 1..7154

0.,1153 52,.57 0..7218 1..7200 780 0.,1239 51..72 0..7254 1..6160

0,,1240 54 ,.11 0..7482 1..6131 800 0.,1316 53..07 0..7510 1..5410

0.,1433 57,.48 0..8025 1..4490 850 0.,1494 56..13 0..8040 1,.4160

0,,1604 60,.48 0..8440 1..3566 900 0.,1655 58,.93 0..8449 1,.3396

0,,1762 63,.25 0..8766 1..2977 950 0.,1805 61,.57 0..8771 1 .2881

0.,1909 65,

X

.89

=

0.

.20

.9024 1..2570 1000 0.,1946 64,

X

.11

= 0.

0.

40

.9027 1 .2512

V H (|)1 <|)2 T V H ^l (j)2 dm-'mol-l kJ mol~ 1 K dm3mol-1 kJ mol-l

620 0.,1111 35,.69 0..5343 1 .5783

640 0.,1175 36,.78 0..5754 1 .5165

0.,0919 41,.27 0.,5267 2..1392 660 0.,1237 37,.83 0..6130 1 .4664

0.,1006 42,.90 0,,5723 1..9291 680 0.,1298 38,.84 0..6475 1 .4250

0.,1089 44..38 0.,6130 1..7814 700 0.,1357 39,.82 0..6789 1 .3902

0.,1167 45..75 0.,6493 1..6729 720 0.,1414 40..78 0..7075 1,.3607

0.,1240 47..04 0.,6818 1..5904 740 0.,1471 41..72 0..7336 1,.3354

0.,1311 48..25 0..7109 1..5258 760 0.,1526 42..64 0..7574 1,.3133

0.,1379 49..42 0.,7371 1..4739 780 0.,1580 43..55 0..7791 1,.2941

0.,1445 50..54 0,,7608 1..4315 800 0.,1634 44..44 0..7989 1,.2771

0.,1600 53..19 0.,8105 1..3530 850 0.,1764 46..63 0..8411 1,.2422

0.,1745 55..71 0..8496 1..2993 900 0,,1890 48..78 0..8748 1,.2153

0.,1884 58..13 0,,8806 1..2603 950 0.,2013 50..91 0..9019 1,.1939

0.,2017 60.

X

.50

=

0.

.60

,9055 1..2307 1000 0.,2133 53.

X

.02

= 0.

0.

80

.9238 1,.1764

V H 4>1 <t>2 T V H <t)l <t,2 dm-'mol-l kJ mol" 1 K dm3mol~l kJ mol-l

540 0.,1238 20..77 0..6867 1,.1886

560 0.,1285 21..50 0..7232 1,.1820

580 0.,1331 22..22 0..7562 1,.1758

0,,1261 29 .48 0..6203 1..2975 600 0.,1377 22..94 0..7855 1,.1702

0..1314 30 .32 0,.6560 1,.2787 620 0.,1423 23..65 0..8125 1,.1647

0,.1365 31 .15 0..6886 1,.2622 640 0.,1468 24,.36 0..8369 1,.1594

0,.1416 31 .97 0,.7185 1,.2476 660 0.,1513 25,.06 0..8589 1,.1545

0,.1466 32 .78 .7456 1 .2347 680 0..1558 25,.76 0..8786 1,.1498

0,.1516 33 .58 0,.7705 1 .2230 700 0..1602 26,.46 0..8966 1,.1453

.1637 35 .55 .8233 1 .1985 750 .1713 28 .21 0,.9341 1 .1350

.1756 37 .49 .8652 1 .1790 800 .1822 29 .95 .9634 1 .1258

.1873 39 .42 .8985 1 .1630 850 .1931 31 .70 .9862 1 .1175

.1987 41 .33 .9251 1 .1495 900 .2038 33 .45 1 .0042 1 .1100

.2101 43 .25 .9465 1 .1381 950 .2145 35 .21 1 .0183 1 .1032

.2212 45 .17 .9637 1 .1282 1000 .2252 36 .99 1 .0294 1 .0970

54
50 MPa

X = .05 X = 0. 10

V H <t)l <t)2 T V H ^l (D2 din^mol"! kJ mol"1 K dm3mol~l kJ mol-1

0.0366 34.64 0,.3788 10 .644 660 0,.0476 37 .13 .3986 5 .656

0.0422 37.45 0,.4348 7,.284 680 0,.0552 39 .80 .4545 4 .168

0.0498 40.46 0,.4897 5 .031 700 0,.0633 42 .29 .5068 3 .251

0.0587 43.38 0,.5407 3 .670 720 0,.0715 44 .52 .5542 2 .685

0.0678 46.00 0,.5864 2 .886 740 0,.0793 46 .52 .5966 2 .324

0.0766 48.27 0..6268 2 .421 760 0,.0867 48,.30 .6343 2 .081

0.0847 50.27 0,.6623 2 .128 780 0,.0937 49,.93 .6681 .9106

0.0923 52.05 0,.6939 .9319 800 0,.1003 51 .43 .6983 .7852

0.1091 55.87 0,.7590 .6478 850 0,.1155 54 .81 .7614 .5839

0.1240 59.16 0,.8093 .4986 900 0,.1292 57 .83 .8107 .4662

0.1374 62.15 0..8488 .4077 950 0..1419 60,.63 .8497 .3895

0.1499 64.95

X =

0,

.20

.8803 .3468 1000 0,.1538 63

X

.30

= 0. 40

.8809 .3357

V H <t)l 2 T V H <|)1 <t,2 dm3mol-l kJ mol"1 K dm^mol-i kJ mol-1

640 0..0946 36,.03 .5129 1 .6902

0.0705 39.45 0,.4514 2 .695 660 0,,0996 37,.12 .5532 1 .6213

0.0773 41.20 0..4997 2,.365 680 0..1045 38,.18 0,.5906 1 .5644

0.0839 42.81 0..5440 2,.132 700 0..1092 39,.20 0,.6252 1 .5167

0.0902 44.30 0,.5844 .9620 720 0,.1139 40,.20 0,.6571 1 .4763

0.0963 45.69 0,.6211 .8341 740 0.,1185 41..17 0,.6865 1 .4416

0.1022 47.01 0,.6545 .7351 760 0.,1230 42,,13 0,.7136 1 .4116

0.1078 48,26 0,.6848 .6565 780 0,,1274 43,,07 0,.7384 1 .3854

0.1133 49.46 0,.7123 .5930 800 0..1318 43.,99 0,.7612 1,.3623

0.1262 52.28 0,.7709 .4774 850 0.,1424 46.,25 0..8104 1,.3152

0.1384 54,93 0,.8174 .4001 900 0.,1527 48.,46 0,.8502 1,.2790

0.1499 57,47 0,.8547 .3448 950 0.,1627 50.,63 0.,8824 1,.2504

0,1609 59.93 0.

X =

.8848

0.60

.3035 1000 0.,1725 52.,79 0.,9087 1,.2271

V H <t)l <t)2 T dm^mol-i kJ mol"•1 K

0.1038 29.21 0,.5696 .3860 600

0.1079 30.08 0,.6080 .3612 620

0.1120 30.93 0,.6437 .3394 640

0.1161 31.76 0,.6765 .3201 660

0.1201 32.59 0..7069 .3030 680

0.1241 33.41 0..7347 .2876 700

0.1280 34.21 0,.7603 .2737 720

0.1319 35.01 0..7838 .2611 740

0.1358 35.81 0,.8053 .2497 760

0.1396 36,60 0,.8250 .2392 780

0.1434 37.39 .8431 .2296 800

0.1528 39.34 .8818 .2086 850

0.1620 41.29 .9132 .1911 900

0.1711 43.23 .9385 .1761 950

0.1801 45.17 .9590 .1633 1000

55
X = 0.05

V H ())i

P = 60 MPa

X = 0.10

(t)2 T V H (|)i K dm^mol"! kJ mol"^

(|)2

0.0335 33.76 0,.3317 12 .317 660

0.0370 36.12 0,.3817 9 .041 680 0,.0458 38..10 0,.3979 5,.396

0.0414 38.63 0,.4321 6 .636 700 0..0514 40..42 0,.4480 4,.220

0.0470 41.21 0,.4814 4 .958 720 0,.0573 42..64 0,.4958 3,.427

0.0533 43.73 0,.5281 3 .845 740 0,.0634 44..70 0,.5401 2 .894

0.0599 46.08 0,.5711 3 .125 760 0,.0694 46..59 0,.5808 2 .527

0.0664 48.22 0,.6101 2 .655 780 0..0752 48..34 0,.6178 2 .268

0.0728 50.16 .6453 2 .338 800 0..0807 49,.95 .6514 2 .079

0.0874 54.35 0,.7191 1 .8912 850 0,.0938 53,.58 .7226 1 .7806

0.1003 57.91 0,.7769 1 .6662 900 0,.1056 56,.79 .7790 1 .6111

0.1121 61.09 0,.8227 1 .5340 950 0,.1166 59,.75 .8241 1 .5033

0.1230 64.04

X =

0,

.20

.8594 1 .4478 1000 0,.1270 62

X

.54

= 0. 40

.8603 1 .4292

V H <t'l <|)2 T V H *! <|)2 dm3mol-l kJ mol"-1 K dm3mol-1 kJ mol-1

660 0..0844 36,.56 0,.5054 1 .7855

0.0638 39.87 0..4434 2,.8454 680 0..0884 37..65 0,.5444 1 .7124

0.0690 41.53 0..4887 2,.5251 700 0,,0924 38,.70 0,.5809 1 .6510

0.0742 43.09 0..5309 2..2887 720 0.,0963 39.,73 0,.6150 1,.5990

0.0792 44.55 0,.5700 2,.1099 740 0.,1001 40,.73 0..6467 1,.5545

0.0841 45.93 0,.6060 1..9716 760 0,,1038 41,.71 0..6761 1,.5159

0.0888 47.25 0..6391 1..8623 780 0,,1075 42,,67 0..7033 1,.4822

0.0934 48.51 0..6695 1..7742 800 0,,1112 43..62 0,.7285 1,.4526

0.1044 51.47 0,.7351 1,.6155 850 0.,1201 45,.93 0..7833 1,.3922

0.1148 54.23 0..7880 1..5106 900 0.,1288 48..19 0..8282 1,.3460

0.1247 56.86 0.,8308 1..4366 950 0.,1372 50,,40 0..8650 1,.3095

0.1341 59.39 0.

X =

.8656

0.60

1,.3819 1000 0.,1455 52.,59 0..8951 1,.2801

V H <t)l <t>2 T dm^mol-l kJ mol"-1 K

0.0928 29.91 0..5703 .4478 620

0.0962 30.78 0..6079 .4204 640

0.0996 31.63 0..6429 .3962 660

0.1029 32.46 0..6754 .3746 680

0.1062 33.29 0..7055 .3552 700

0.1094 34.11 0..7334 .3378 720

0.1127 34.92 0,.7591 .3219 740

0.1159 35.73 0,.7828 .3075 760

0.1191 36.53 0,.8047 .2943 780

0.1222 37.33 .8248 .2822 800

0.1300 39.31 .8683 .2558 850

0.1378 41.27 .9037 .2339 900

0.1454 43.23 .9325 .2153 950

0.1529 45.18 .9558 .1994 1000

56
P = 70 MPa

X = .05 X = 0. 10

V H <t>l <t)2 T V H <1)1 <t>2 dm-^mol-l kJ mol" 1 K dm^mol-l kJ mol-1

0.0295 31.18 2550 17 818 640

0.0315 33.22 2986 13 642 660

0.0341 35.35 3441 10 408 680 0.0408 37.03 3575 6 4859

0.0372 37.57 3906 7 950 700 0.0448 39.18 4045 5 1508

0.0410 39.87 4371 6 128 720 0.0491 41.28 4506 4 .1935

0.0454 42.17 4825 4 818 740 0.0538 43.30 .4948 3 .5124

0.0502 44.43 5256 3 899 760 0.0585 45.21 .5364 3 .0262

0.0553 46.57 5660 3 .262 780 0.0633 47.00 .5750 2 .6744

0.0604 48.57 6033 2 .817 800 0.0679 48.68 .6108 2 .4148

0.0728 52.98 6833 2 .178 850 0.0791 52.47 .6879 2 .0046

0.0841 56.74 7472 1 .8600 900 0.0894 55.84 .7500 1 .7740

0.0945 60.10 7984 1 .6773 950 0.0991 58.93 .8003 1 .6296

0.1042 63.19

X = .20

8398 1 5605 1000 0.1081 61.82

X = 0.

.8411 1 .5317

V H <|)1 <t)2 V H <t)l <t>2 dm^mol-l kJ mol" 1 K dm3mol-l kJ mol-1

660 0.0741 36.12 .4672 1 .9579

0.0554 38.87 4004 3 344 680 0.0775 37.23 .5069 1 .8680

0.0596 40.53 4450 2 943 700 0.0809 38.30 .5446 1 .7925

0.0638 42.11 4875 2 641 720 0.0842 39.35 .5800 1 .7284

0.0679 43.60 5276 2 410 740 0.0874 40.37 .6133 1 .6734

0.0720 45.03 5651 2 230 760 0.0906 41.37 .6444 1 .6257

0.0761 46.38 6000 2 088 780 0.0938 42.35 .6734 1 .5842

0.0800 47.69 6324 9727 800 0.0969 43.31 .7003 1 .5476

0.0895 50.75 7033 7661 850 0.1046 45.67 .7597 1 .4731

0.0985 53.60 7613 6305 900 0.1120 47.96 .8089 1 .4162

0.1070 56.30 8088 .5355 950 0.1193 50.21 .8495 1 .3714

0.1153 58.91

X =

8478

0.60

4657 1000 0.1264 52.43 .8831 1 .3352

V H ^1 <t>2 T dm3mol~l kJ mol" 1 K

0.0852 30.69 .5792 1 .5059 640

0.0880 31.55 .6157 1 .4764 660

0.0909 32.39 .6499 1 .4500 680

0.0937 33.23 .6817 1 .4264 700

0.0964 34.06 .7113 1 .4051 720

0.0992 34.88 .7388 1 .3858 740

0.1019 35.70 .7642 1 .3682 760

0.1046 36.50 .7878 1 .3522 780

0.1073 37.31 .8096 1 .3374 800

0.114T) 39.30 .8571 1 .3053 850

0.1206 41.28 .8959 1 .2786 900

0.1271 43.25 .9282 1 .2557 950

0.1336 45.22 .9542 1 .2363 1000

57
P = 80 MPa X = .05 X = 0. 10

V H <t)l <t>2 T V H Oi (j)2 dm^mol"! kJ mol~1 K dm^imol~l kJ mol-1

0.0285 30.93 0,.2339 18.958 640

0.0302 32.85 0..2740 14.826 660

0.0322 34.83 0..3162 11.591 680 0..0376 36.32 0..3276 7.472

0.0346 36.88 0,.3596 9.086 700 0..0407 38.32 0,.3717 6.023

0.0374 38.99 0,.4035 7.173 720 0.,0440 40.31 0,.4157 4.943

0.0407 41.12 0,.4470 5.736 740 0.,0476 42.25 0,.4587 4.144

0.0443 43.24 0..4893 4.676 760 0,.0514 44.13 0,.5001 3.553

0.0483 45.30 0..5297 3.902 780 0..0553 45.92 0,.5393 3.113

0.0524 47.28 0..5678 3.341 800 0,.0592 47.62 0,.5761 2.783

0.0627 51.78 0,.6517 2.503 850 0..0687 51.51 0,.6572 2.253

0.0726 55.69 0,.7203 2.079 900 0..0778 54.99 .7239 1.954

0.0818 59.19 0,.7761 1.838 950 0..0863 58.18 .7786 1.768

0.0904 62.39

X =

0,

.20

.8217 1.685 1000 0,.0944 61.17

X = 0. 40

.8234 1.643

V H <t>l <t)2 T V H <|)l <t)2 dm3inol-l kJ mol"•1 K dm3mol-1 kJ mol-i

660 0,.0667 35.78 .4365 2.138

0.0498 38.11 0,.3673 3.851 680 0,.0697 36.90 .4765 2.031

0.0532 39.75 0..4106 3.375 700 0,.0726 37.99 0,.5147 1.941

0.0567 41.33 0..4526 3.011 720 0,.0754 39.05 0,.5510 1.864

0.0602 42.83 0,.4927 2.730 740 0,.0782 40.08 .5853 1.798

0.0637 44.28 0..5309 2.508 760 0,.0810 41.09 .6175 1.741

0.0671 45.66 0..5668 2.330 780 0,.0838 42.09 .6479 1.691

0.0705 46.99 0,.6005 2.187 800 0,.0865 43.07 .6762 1.647

0.0787 50.12 0,.6753 1.928 850 0,.0932 45.46 .7392 1.558

0.0866 53.04 0,.7374 1.759 900 0,.0997 47.78 .7919 1.490

0.0941 55.81 0..7889 1.641 950 0,,1060 50.05 .8359 1.436

0.1014 58.47 0,

X =

.8316

0.60

1.555 1000 0..1123 52.30 .8725 1.393

V H <t)l <t>2 T dm^mol"! kJ mol"•1 K

0.0771 30.64 0,.5565 1.595 640

0.0796 31.51 0,.5941 1.560 660

0.0820 32.37 0,.6295 1.529 680

0.0845 33.21 0,.6627 1.501 700

0.0869 34.05 .6937 1.475 720

0,0893 34.88 .7226 1.452 740

0.0916 35.70 .7495 1.431 760

0.0940 36.51 .7745 1.412 780

0.0963 37.32 .7977 1.395 800

0.1022 39.33 .8485 1.356 850

0.1079 41.32 .8904 1.325 900

0.1136 43.30 .9249 1.298 950

0.1192 45.29 .9534 1.275 1000

58
P = 90 MPa

X = .05 X = 0. 10

V H <t>l <j,2 T V H «l)l ^2 dm3mol-l kJ mol-1 K dm3mol-l kJ mol-1

0.0277 30.74 0.218 20.101 640

0.0292 32.58 0.255 15.960 660

0.0308 34.47 0.295 12.690 680 0.0354 35.81 3048 8.396

0.0328 36.40 0.336 10.127 700 0.0379 37.71 3464 6.852

0.0351 38.38 0.377 8.134 720 0.0406 39.60 3884 5.671

0.0376 40.37 0.419 6.600 740 0.0435 41.47 4301 4.773

0.0405 42.38 0.460 5.431 760 0.0466 43.29 4707 4.091

0.0436 44.35 0.500 4.549 780 0.0498 45.05 .5097 3.572

0.0469 46.28 0.538 3.886 800 0.0530 46.75 .5469 3.174

0.0556 50.77 0.624 2.857 850 0.0612 50.68 .6304 2.522

0.0641 54.77 0.696 2.321 900 0.0691 54.24 .7006 2.150

0.0723 58.36 0.756 2.014 950 0.0767 57.51 .7589 1.919

0.0800 61.66

X =

0.805

.20

1.822 1000 0.0839 60.57

X = 0. 40

.8071 1.764

V H <t)l 4>2 T V H <t)l 4)2 dm^mol"! kJ mol- 1 K dm3inol-l kJ mol-1

0.0458 37.54 0.341 4.361 680 0.0638 36.64 .4515 2.202

0.0487 39.15 0.383 3.816 700 0.0663 37.74 .4900 2.096

0.0516 40.71 0.424 3.393 720 0.0688 38.81 .5267 2.006

0.0546 42.21 0.464 3.063 740 0.0713 39.86 .5617 1.929

0.0576 43.66 0.502 2.799 760 0.0737 40.88 .5949 1.862

0.0605 45.06 0.539 2.587 780 0.0762 41.89 ,6262 1.803

0.0635 46.40 0.573 2.414 800 0.0786 42.88 ,6557 1.752

0.0707 49.58 0.651 2.102 850 0.0845 45.29 .7215 1.646

0.0776 52.56 0.716 1.897 900 0.0902 47.63 .7772 1.566

0.0843 55.37 0.771 1.754 950 0.0959 49.93 .8240 1.503

0.0908 58.08 0.817 1.650 1000 0.1014 52.20 .8633 1.452

X = 0.60

V H <h <{)2 T

m- mol-1 kJ mol-i K

600

620

640

0731 31 .51 577 1 648 660

0753 32 .37 613 1 612 680

0774 33 .23 647 1 .579 700

0796 34 .07 680 1 .549 720

0817 34 .90 710 1 .522 740

0838 35 .73 738 1 .497 760

0858 36 .55 764 1 .475 780

.0879 37 .36 789 1 .454 800

.0930 39 .38 842 1 .410 850

.0981 41 .38 .887 1 .372 900

.1031 43 .38 .924 1 .341 950

.1081 45 .37 .954 1 .315 1000

59
P = 100 MPa

X = .05 X = 0. 10

V H <t>l 4>2 T V H <t)l «|)2 dm^mol-l kJ mol-1 K dm^mol"! kJ mol-1

0.0270 30.61 0.205 21.277 640

0.0283 32.39 0.241 17.086 660

0.0298 34.20 0.278 13.756 680 0.0338 35.43 0..2869 9.291

0.0314 36.05 0.317 11.121 700 0.0358 37.26 0..3265 7.655

0.0333 37.93 0.357 9.048 720 0.0381 39.07 0..3668 6.384

0.0354 39.83 0.397 7.426 740 0.0405 40.87 0,.4070 5.399

0.0378 41.74 0.437 6.166 760 0.0431 42.64 0,.4467 4.635

0.0403 43.63 0.476 5.191 780 0.0458 44.37 0..4853 4.043

0.0431 45.49 0.513 4.441 800 0.0485 46.04 0..5224 3.581

0.0503 4 9.93 0.600 3.234 850 0.0556 49.98 0,.6073 2.809

0.0578 53.96 0.675 2.584 900 0.0626 53.58 0,.6800 2.361

0.0650 57.62 0.738 2.206 950 0.0693 56.91 0,.7412 2.081

0.0720 60.99

X =

0.790

.20

1.970 1000 0.0758 60.03

X = 0. 40

.7924 1.893

V H <t>l 02 T V H <t)l <|>2 dm^mol-l kJ mol" 1 K dm^mol-l kJ mol-1

680 0.0592 36.44 0,.4310 2.380

0.0453 38.68 0.361 4.267 700 0.0614 37.55 0,.4694 2.259

0.0478 40.22 0.401 3.787 720 0.0637 38.62 0,.5065 2.155

0.0504 41.71 0.441 3.407 740 0.0659 39.68 0,.5420 2.066

0.0530 43.16 0.479 3.102 760 0.0681 40.71 .5758 1.988

0.0556 44.56 0.515 2.855 780 0.0702 41.73 .6078 1.920

0.0581 45.91 0.550 2.653 800 0.0724 42.73 .6381 1.861

0.0645 49.12 0.629 2.285 850 0.0776 45.16 .7064 1.739

0.0707 52.14 0.697 2.043 900 0.0828 47.53 .7646 1.646

0.0767 54.99 0.755 1.874 950 0.0879 49.84 .8139 1.573

0.0825 57.74

X

0.804

= 0.60

1.751 1000 0.0928 52.13 .8554 1.515

V H <t>l <t)2 T dm3mol~l kJ mol~1 K

0.0680 31.54 0.560 1.747 660

0.0700 32.41 0.597 1.704 680

0.0719 33.27 0.632 1.666 700

0.0738 34.11 0.665 1.631 720

0.0757 34.95 0.700 1.594 740

0.0775 35.78 0.729 1.566 760

0.0794 36.61 0.756 1.540 780

0.0812 37.43 0.782 1.516 800

0.0858 39.45 0.838 1.465 850

0.0904 41.47 0.885 1.422 900

0.0948 43.47 0.924 1.386 950

0.0993 45.46 0.956 1.356 1000

60
Table 5

Infinite-dilution (standard state) values of

partial molar volume V^, enthalpy H^, and heat capacity C ^,

and fugacity coefficient cp^ of nitrogen in water,

for the same pressures and temperatures as in Table 4. Values in italics refer to the liquid state.

61
P = 0. 05 MPa P = 0.10 MPa

V2 H2 Cp2 <t)2 T V2 H2 Cp2 <1>2 m^ mol~l kJ mol-1 kJ mol-lK--1 K dm3 mol-1 kJ mol-1 kJ mol-lK"-1

73.6 10.57 0.028 1 0056 440 37.0 10.70 0.026 1 0114

76.8 11.13 0.028 1 0043 460 38.6 11.23 0.027 1 .0087

80.1 11.70 0.029 1 0034 480 40.2 11.78 0.028 1 .0069

83.4 12.28 0.029 1 0027 500 41.8 12.34 0.028 1 .0055

86.7 12.86 0.029 1 0022 520 43.4 12.91 0.029 1 .0044

90.0 13.45 0.029 1 0018 540 45.1 13.49 0.029 1 .0036

93.3 14.04 0.030 1 0015 560 46.7 14.07 0.029 1 .0030

96.6 14.63 0.030 1 oni2 580 48.4 14.66 0.030 1 .0026

99.9 15.23 0.030 1 0011 600 50.0 15.25 0.030 1 .0022

103.2 15.83 0.030 1 0009 620 51.6 15.85 0.030 1 .0019

106.5 16.43 0.030 1 0008 640 53.3 16.45 0.030 1 .0016

109.8 17.04 0.030 1 .0007 660 54.9 17.06 0.030 1 .0014

113.1 17.65 0.030 1 .0006 680 56.6 17.66 0.030 1 .0012

116.5 18.26 0.031 1 .0005 700 58.3 18.27 0.031 1 .0011

119.8 18.88 0.031 1 .0005 720 59.9 18.89 0.031 1 .0010

123.1 19.49 0.031 1 .0004 740 61.6 19.50 0.031 1 .0009

126.4 20.11 0.031 1 .0004 760 63.2 20.12 0.031 1 .0008

129.8 20.74 0.031 1 .0003 780 64.9 20.75 0.031 1 .0007

133.1 21.36 0.031 1 .0003 800 66.6 21.37 0.031 1 .0007

141.4 22.94 0.032 1 .0003 850 70,7 22.95 0.032 1 .0006

149.7 24.53 0.032 1 .0002 900 74.9 24.54 0.032 1 .0005

158.0 26.15 0.032 1 .0002 950 79.0 26.15 0.032 1 .0004

166.3 27.78

P = 0.

0.033

15 MPa

1 .0002 1000 83.2

P

27.78

= 0.20

0.033

MPa

1 .0004

V2 H2 Cp2 (j)2 T V2 H2 Cp2 <t)2 m3 mol~l kJ mol-1 kJ mol-lK--1 K dm3 mol-1 kJ mol-1 kJ mol-lR--1

24.81 10.83 0.024 1 .0174 440 18.73 10.97 .022 1 .0236

25.85 11.33 0.026 1 .0133 460 19.48 11.44 0.024 1 .0180

26.89 11.86 0.027 1 .0104 480 20.24 11.94 0.026 1 .0140

27.95 12.40 0.028 1 .0083 500 21.02 12.47 0.027 1 .0112

29.02 12.96 0.028 1 0067 520 21.82 13.01 0.028 1 .0090

30.10 13.53 0.029 1 0055 540 22.62 13.57 0.028 1 0074

31.1 14.11 0.029 1 0046 560 23.43 14.14 0.029 1 0062

32.3 14.69 0.029 1 0039 580 24.24 14 .72 0.029 1 0052

33.4 15.28 0.030 1 0033 600 25.05 15.31 0.029 1 0044

34.5 15.87 0.030 1 0028 620 25.87 15.90 0.030 1 0038

35.6 16.47 0.030 1 0025 640 26.69 16.49 0.030 1 0033

36.7 17.07 0.030 1 0022 660 27.52 17.09 0.030 1 0029

37.8 17.68 0.030 1 0019 680 28.34 17.69 0.030 1 0026

38.9 18.29 0.030 1 0017 700 29.17 18.30 0.030 1 0023

40.0 18.90 0.031 1 0015 720 29.99 18.91 0.031 1 0020

41.1 19.51 0.031 1 0014 740 30.8 19.53 0.031 1 0018

42.2 20.13 0.031 1 0012 760 31.6 20.14 0.031 1 0017

43.3 20.75 0.031 1 0011 780 32.5 20.76 0.031 1 0015

44.4 21.38 0.031 1 .0010 800 33.3 21.39 0,031 1 0014

47.2 22.95 0.032 1 .0009 850 35.4 22,96 0.032 1 0012

49.9 24.54 0.032 1 .0008 900 37.4 24,55 0.032 1 0010

52.7 26.15 0.032 1 .0007 950 39.5 26.16 0.032 1 .0009

55.5 27.78 0.033 1 .0006 1000 41.6 27.79 0.033 1 .0008

62
P = 0.25 MPa

dm3

P = 0.30 MPa

V2 H2 Cp2 <|>2 T V2 H.? Cp2 <t>2

3 mol-1 kJ mol-1 kJ mol-lK"-1 K dm^ mol""l kJ mol-1 kJ mol-lR--1

15.08 11 12 0.020 1 0300 440 12.66 11 27 0.018 1 0366

15.66 11 55 0.023 1 0228 460 13.12 11 66 0.021 1 0278

16.26 12 03 0.025 1 0178 480 13.60 12 12 0.024 1 0216

16.87 12 54 0.026 1 0141 500 14.10 12 61 0.025 1 0171

17.50 13 07 0.027 1 0114 520 14.62 13 13 0.027 1 0138

18.13 13 62 0.028 1 0093 540 15.14 13 66 0.027 1 0113

18.77 14 18 0.028 1 0078 560 15.67 14 22 0.028 1 .0094

19.42 14 75 0.029 1 0065 580 16.20 14 78 0.029 1 .0079

20.07 15 33 0.029 1 .0056 600 16.74 15 36 0.029 1 .0067

20.72 15 92 0.029 1 0048 620 17.28 15 94 0.029 1 .0058

21.37 16 51 0.030 1 .0041 640 17.83 16 53 0.030 1 .0050

22.03 17 .11 0.030 1 .0036 660 18.37 17 12 0.030 1 .0044

22.69 17 71 0.030 1 .0032 680 18.92 17 .72 0.030 1 .0039

23.35 18 31 0.030 1 .0029 700 19.47 18 .33 0.030 1 .0034

24.01 18 92 0.031 1 .0026 720 20.02 18 93 0.030 1 .0031

24.67 19 .54 0.031 1 .0023 740 20.57 19 55 0.031 1 .0028

25.33 20 .15 0.031 1 .0021 760 21.12 20 .16 0.031 1 .0025

25.99 20 77 0.031 1 0019 780 21.67 20 78 0.031 1 .0023

26.65 21 39 0.031 1 .0018 800 22.22 21 40 0.031 1 .0022

28.31 22 96 0.032 1 0015 850 23.60 22 97 0.032 1 .0018

29.97 24 55 0.032 1 .0013 900 24.98 24 56 0.032 1 .0016

31.63 26 16 0.032 1 .0011 950 26.37 26 17 0.032 1 .0014

33.29 27 79 0.033 •1 0010 1000 27.75 27 79 0.033 1 .0012

P = 0.40 MPa

V2 H2 Cp2

dm3 mol~l kJ mol-1 kJ mol-lK~l

<j)2

P = 0.50 MPa

V2 H2 Cp2

dm3 mol-1 kJ mol-1 kJ mol-lK~l

<j)2

9 64 11 60 012 1 0505 440 7 84 11 96 .006 1 0654

9 95 11 91 018 1 0380 460 8 06 12 17 .014 1 0489

10 29 12 30 021 1 0294 480 8 30 12 50 .019 1 .0375

10 64 12 75 024 1 0232 500 8 57 12 90 .022 1 .0295

11 02 13 24 025 1 0186 520 8 86 13 36 .024 1 .0236

11 40 13 76 026 1 0152 540 9 16 13 86 .025 1 0192

11 79 14 30 027 1 0126 560 9 46 14 38 .027 1 0159

12 19 14 85 028 1 0106 580 9 78 14 91 .027 1 0133

12. 58 15 41 028 1 0090 600 10 09 15 47 .028 1 0113

12 99 15 99 029 1 0077 620 10 41 16 04 .029 1 0097

13 39 16 57 029 1 0067 640 10 73 16 61 .029 1 0084

13 80 17 16 030 1 0059 660 11 06 17 19 .029 1 0074

14 21 17 75 030 1 .0052 680 11 38 17 78 .030 1 0065

14 62 18 35 030 1 .0046 700 11 71 18 38 030 1 0058

15 03 18 96 030 1 .0041 720 12 04 18 98 030 1 0052

15 44 19 57 031 1 .0038 740 12 36 19 59 030 1 0047

15 85 20 18 031 1 .0034 760 12 69 20 20 031 1 0043

16 26 20 .80 .031 1 .0031 780 13 02 20 81 .031 1 0039

16 .68 21 .42 .031 1 .0029 800 13 35 21 43 .031 1 0036

17 .71 22 .98 .032 1 .0024 850 14 18 22 .99 .031 1 0030

18 .75 24 .57 .032 1 .0021 900 15 .01 24 .58 .032 1 .0026

19 .78 26 .17 .032 1 .0018 950 15 .83 26 .10 .032 1 .0023

20 .82 27 .80 .033 1 .0017 1000 16 .66 27 .81 .033 1 .0021

63
P = 0.60 MPa

V2

dm3

0.70 MPa

H2 Cp2 <t>2 T V2 H2 Cp2 <|,2

3 mol-1 kJ mol-1 kJ mol-lR--1 K dm^ mol"! kJ mol-1 kJ mol-lR--1

6.65 12.36 0.000 1,.0813 440 5.81 12.79 -0.008 1,.0983

6.80 12.45 0.009 1,.0603 460 5.91 12.76 0.004 1.,0724

6.98 12.71 0.016 1,.0461 480 6.05 12.93 0.012 1.,0549

7.20 13.07 0.020 1,.0360 500 6.21 13.24 0.017 1.,0428

7.42 13.49 0.022 1,.0288 520 6.40 13.62 0.021 1.,0340

7.67 13.96 0.024 1,.0234 540 6.60 14.06 0.023 1.,0276

7.92 14.46 0.026 1,.0193 560 6.81 14.54 0.025 1,,0227

8.17 14.98 0.027 1,.0161 580 7.02 15.05 0.026 1.,0190

8.43 15.53 0.028 1..0137 600 7.24 15.58 0.027 1,,0161

8.69 16.08 0.028 1..0117 620 7.47 16.13 0.028 1,,0138

8.96 16.65 0.029 1..0102 640 7.69 16.69 0.028 1,,0119

9.23 17.23 0.029 1,.0089 660 7.92 17.27 0.029 1,,0104

9.50 17.81 0.029 1,.0079 680 8.15 17.85 0.029 1,.0092

9,77 18.41 0.030 1..0070 700 8.38 18.43 0.030 1,.0082

10.04 19.01 0.030 1,.0063 720 8.62 19.03 0.030 1,.0074

10.31 19.61 0.030 1,.0057 740 8.85 19.63 0.030 1,.0066

10.59 20.22 0.031 1,.0052 760 9.08 20.24 0.030 1,,0061

10.86 20.83 0.031 1,.0047 780 9.32 20.85 0.031 1,,0056

11.13 21.45 0.031 1,.0044 800 9.55 21.46 0.031 1.,0051

11.82 23.01 0.031 1,.0037 850 10.14 23.02 0.031 1,,0043

12.51 24.59 0.032 1,.0032 900 10.73 24.60 0.032 1.,0037

13.20 26.19 0.032 1,,0028 950 11.32 26.20 0.032 1.,0033

13.89 27.81 0.033 1,.0025 1000 11.91 27.82 0.033 1.,0030

P = 0.80 MPa

V2 H2 Cp2

dm3 mol-1 kJ mol-1 kJ mol-lK-1

P = 0.90 MPa

T V2 H2 Cp2 (|)2 K dm3 mol-1 kJ mol-1 kJ mol-lK-1

0.046 29.86 0.132 10786. 440 0.046 29.86 0.132 9647.

0.046 30..34 0..134 10344. 443.59

5.198 13,,20 -0,.014 1.1097 443.59

448.54 0.047 31..01 .138 8710.

448.54 4.716 13.,58 -0,.018 1.1179

5.24 13..09 -0..001 1.0851 460 4.73 13.,44 -0,.007 1.0986

5.34 13.,17 0..0 09 1.0642 480 4.80 13.,43 0,.005 1.0739

5.48 13..41 0..015 1.0498 500 4.91 13.,60 0,.012 1.0570

5.63 13.,76 0.,019 1.0395 520 5.04 13.,90 0,.017 1.0450

5.80 14.,17 0..022 1.0319 540 5.18 14 .,28 0,,021 1.0363

5.98 14,,63 0.,024 1.0262 560 5.34 14..72 0.,023 1.0298

6.17 15,,12 0.,025 1.0219 580 5.50 15..20 0,,025 1.0248

6.35 15,,64 0.,026 1.0185 600 5.66 15..70 0..026 1.0209

6.55 16,,18 0.,027 1.0158 620 5.83 16..23 0,,027 1.0179

6.74 16,,74 0.,028 1.0137 640 6.01 16..78 0.,028 1.0155

6.94 17,,30 0.,029 1.0120 660 6.18 17..34 0.,028 1.0135

7.14 17,,88 0.,029 1.0106 680 6.36 17.,91 0,.029 1.0119

7.35 18,.46 0,,029 1.0094 700 6.54 18.,49 0,,029 1.0106

7.55 19,.05 0,.030 1.0084 720 6.72 19,.08 0,.030 1.0095

1.15 19 .65 0,.030 1.0076 740 6.90 19,,67 0,.030 1.0086

7.95 20 .26 0,.030 1.0069 760 7.08 20,,27 0,.030 1.0078

8.16 20 .86 .031 1.0064 780 7.26 20,,88 0,.030 1.0072

8.36 21 .48 .031 1.0059 800 7.44 21,.49 0,.031 1.0066

8.88 23 .03 .031 1.0049 850 7.90 23,.04 0,.031 1.0055

9.39 24 .61 .032 1.0042 900 8.35 24,.62 .032 1.0048

9.91 26 .21 .032 1.0038 950 8.81 26 .21 .032 1.0042

10.43 27 .83 .033 1.0034 1000 9.28 27 .83 .033 1.0038

64
P = 1.0 MPa P = 1.5 MPa

V2 H2 Cp2 <|)2 T V2 H2 Cp2 <t>2

3 mol-1 kJ mol-1 kJ mol-lK"-1 K dm3 mol"l kJ mol-1 kJ mol-lK"•1

0.046 29.86 0.132 8728. 440 0.046 29.84 0.132 5925.

4 60 0.049 32.62 0.147 4654.

0.048 31.64 0.142 7451. 453.07

4.33 13.94 -0.022 1.1258 453.07

471.48 0.052 34.37 0.1604 4042.

471.48 3.14 15.62 -0.042 1.1628

4.33 13.82 -0.014 1.1128 460

4.37 13.70 0.000 1.0840 480 3.12 15.32 -0.029 1.1423

4.46 13.80 0.009 1.0645 500 3.12 14.96 -0.009 1.1064

4.56 14.05 0.015 1.0508 520 3.15 14.91 0.003 1.0821

4.69 14.40 0.019 1.0408 540 3.21 15.05 .011 1.0650

4.82 14.81 0.022 1.0334 560 3.28 15.32 0.016 1.0526

4.96 15.27 0.024 1.0278 580 3.36 15.68 0.020 1.0434

5,11 15.77 0.025 1.0234 600 3.45 16.10 0.022 1.0363

5.26 16.28 0.026 1.0200 620 3.55 16.56 0.024 1.0308

5.42 16.82 0.027 1.0173 640 3.65 17.05 0.025 1.0265

5.57 17.38 0.028 1.0151 660 3.75 17.57 .026 1.0231

5.73 17.94 0.029 1.0133 680 3.85 18.11 0.027 1.0203

5.89 18.52 0.029 1.0118 700 3.95 18 .66 0.028 1.0180

6.29 19.99 0.030 1.0091 750 4.22 20.10 0.029 1.0139

6.70 21.51 0.031 1.0074 800 4.48 21.59 0.030 1.0112

7.11 23.05 0.031 1.0062 850 4.76 23.12 0.031 1.0094

7.52 24.63 0.032 1.0053 900 5.03 24.68 0.031 1.0081

7.94 26.22 0.032 1.0047 950 5.30 26.26 0.032 1.0072

8.35 27.84 0.033 1.0043 1000 5.58 27.8^ 0.032 1.0065

P = 2.0 MPa P = 2.5 MPa

V2 H2 Cp2 <t>2 T V2 H2 Cp2 <t)2

3 mol-1 kJ mol-1 kJ mol-lR--1 K dm3 mol-1 kJ mol-1 kJ mol-lR--1

0.046 29.83 0.131 4500. 440 0.046 29.82 0.132 3635.

0.049 32.60 0.147 3533. 4 60 0.049 32.58 0.146 2855.

0.054 35.73 0.168 2760. 480 0.054 35. 70 0.168 2230.

0.055 36.69 0.176 2571. 485.57

2.523 17.16 -0.065 1.1969 485.57

497.14 0.059 38. 78 0.194 1793.

497.14 2.148 18.65 -0.089 1.2293

2.479 16.45 -0.037 1.1569 500 2.133 18.41 -0.080 1.2188

2.465 15.96 -0.014 1.1184 520 2.073 17.27 -0.038 1.1609

2.483 15.83 0.000 1.0923 540 2.059 16.75 -0.015 1.1231

2.521 15.91 0.008 1.0738 560 2.071 16.59 -0.001 1.0971

2.571 16.14 0.014 1.0602 580 2.099 16.66 0.007 1.0785

2.629 16.46 0.018 1.0501 600 2.138 16.87 0.013 1.0648

2.694 16.86 0.021 1.0423 620 2.183 17.19 0.018 1.0544

2.762 17.30 0.023 1.0362 640 2.234 17.57 0.021 1.0464

2.834 17.78 0.025 1.0314 660 2.288 18 .00 0.023 1.0401

2.908 18.29 0.026 1.0275 680 2.345 18.47 0.024 1.0350

2.984 18.81 0.027 1.0244 700 2.403 18.97 0.026 1.0310

3.178 20.21 0.029 1.0187 750 2.555 20.32 0.028 1.0237

3.377 21.67 0.030 1.0151 800 2.713 21.75 0.029 1.0190

3.579 23.18 0.031 1.0126 850 2.873 23.24 0.030 1.0159

3.78 24.73 0.031 1.0109 900 3.04 24.78 0.031 1.0137

4.19 27.91 0.032 1.0087 1000 3.36 27.94 0.032 1.0109

65
P = 3.0 MPa

V2 H2 Cp2 <t»2 T

dm3 mol-1 kJ mol-1 kJ mol-lK-1 K

P = 4.0 MPa

V2 H2 Cp2 <t)2 dm3 mol-1 kJ mol""l kJ mol-lK-1

0.046 29.80 0.130 3056.

0.049 32.56 0.146 2400.

0.054 35.67 0.166 1875.

0.059 39.29 0.198 1454.

440

4 60

480

500

520

0.045 29.78 0.130 2328.

0.049

0.053

0.059

0.067

32.51

35. 60

39.19

43.53

0.145 1829.

0.165 1429.

0.196 1109.

0.243 850.5

0.062 40.74 0.212 1325. 507.04

1.895 20.10 -0.116 1.2609 507.04

523.54 0.0 68

523.54 1.578

44.41

23.03

0.254

-0.179

809.9

1.3227

,833

,788

,778

,789

,813

,845

,883

925

,970

,017

,141

,270

2.403

2.537

2.809

18.90

17.86

17.39

17.25

17.33

17.54

17.86

18.24

18.67

19.14

20.43

21.84

23.31

24.83

27.98

-0.073

-0.035

-0.014

-0.001

0.008

0.014

0.018

0.020

0.023

0.024

0.027

0.029

0.030

0.031

0.032

2111

1582

1230

0984

0805

0672

0570

0491

0428

0377

0288

0231

0193

0166

0132

520

540

560

580

600

620

640

660

680

700

750

800

850

900

1000

486

433

414

415

428

449

475

504

536

623

717

815

914

117

20.82

19.39

18.68

18.39

,36

.50

.76

19.10

19.50

20.68

22.01

23.44

24.94

28.05

-0.099

-0.050

-0.023

-0.007

0.003

0.010

0.015

0,019

0.021

025

028

029

030

0.032

1.2451

1.1840

1.1436

1.1155

1.0951

1.0799

1.0682

1.0591

1.0519

1.0393

1.0314

1.0261

1.0225

1.0178

P = 5.0 MPa

V2 H2 Cp2 <t>2 T

dm3 mol-1 kJ mol-1 kJ mol-lK-1 K

P = 6.0 MPa

V2 H2 Cp2

dm3 mol-1 kJ mol-1 kJ mol-lR-l

<t»2

0.045 29.75

0.049 32.47

0.053 35.54

0.059 39.09

0.066 43.38

0.129 1889.

0.144 1484.

0.164 1161.

0.193 901.1

0.239 691.9

440

4 60

480

500

520

540

0.045

0.049

0.053

0.058

0.066

0.076

29. 72

32.43

35.47

38.99

43.22

48.59

0.129

0.143

0.162

0.191

0.235

0.310

1596.

1254.

981.3

762.3

586.0

443.3

0.075

1.391

47.96

26.07

0.302

-0.257

544.6

1.3845

537.13

537.13

548. 77

548.77

0.082

1.274

51.52

29.32

0.361

-0.355

389.3

1.4478

1.367

1.256

1.206

1.187

1.184

1.192

,207

.227

.249

.314

.386

.463

.541

1.702

25.38

22.16

20.53

19.71

19.34

19.26

19.36

19.58

19.90

20.94

22.20

23.58

25.05

28.13

-0.229

-0.111

-0.057

-0.028

-0.010

0.001

0.008

0.014

0.018

0.023

0.027

0.029

0.030

0.032

3645

2614

1981

1561

1266

1052

0891

0767

0670

0503

0400

1.0332

1.0285

1.0226

540

560

580

600

620

640

660

680

700

750

800

850

900

1000

178

087

046

029

026

1.032

1,044

1.059

1.109

1.166

1.228

1.293

1,426

26.16

22.98

21.36

20.52

20.14

20.04

20.12

20.34

21.22

22.40

23.73

25.16

28.21

0.223

0.110

0.058

029

0.011

0.000

008

013

021

025

0.028

0.029

0.031

-0

1.3629

1.2648

1.2036

1,1624

1.1332

1.1118

1.0957

1.0831

,0618

,0489

,0405

,0347

1.0275

66
P = 8.0 MPa

V2 H2 Cp2

dm3 riiol"! kJ mol~l kJ mol"lK-l

P = 10.0 MPa

T V2 H2 Cp2 (t)2 K dm3 mol-1 kJ mol-1 kJ mol"lK-l

dm^

0.045 29 67 0.127 1228.5 440 .045 29.62 .126 1008.1

0.048 32 35 0.141 966.3 4 60 .048 32.27 0.140 793.5

0.053 35 35 0.160 756.8 480 .052 35.23 0.158 622.1

0.058 38 81 0.187 588. 7 500 057 38.63 0.184 484. 6

0.081 51 30 0.349 297.4 550 080 50.68 0.330 246. 6

0.098 59 02 0.525 223.4431 568.19

1.151 36 79 -0.644 1.5831 568.19

584.18 120 67.69 0. 798 141.3

584.18 1 118 46.34 -1.151 1.7378

1.018 31 11 -0.359 1.4573 580

0.907 26 16 -0.168 1.3282 600 900 34.84 -0.461 1.5195

0.855 23 70 -0.088 1.2507 620 786 28.61 -0.208 1.3718

0.831 22 39 -0.047 1.1997 640 733 25.56 -0.109 1.2847

0.822 21 71 -0.023 1.1641 660 707 23.93 -0.060 1.2279

0.821 21 41 -0.008 1.1382 680 695 23.05 -0.031 1.1884

0.827 21 36 0.002 1.1187 700 .692 22.61 -0.014 1.1596

0.854 21 85 0.016 1.0867 750 .704 22.58 0.009 1.1140

0.893 22 83 0.022 1.0679 800 730 23.31 0.019 1.0883

0.936 24 05 0.026 1.0558 850 762 24.39 0.024 1.0722

0.983 25 41 0.028 1.0477 900 .798 25.67 0.027 1.0613

1.031 26 86 0.030 1.0419 950 .835 27.07 0.029 1.0537

1.081 28 38 0.031 1.0375 1000 .874 28.55 0.030 1.0480

P == 12 MPa P = 14 MP a V2 H2 Cp2 (1)2 T V2 H2 Cp2 <1>2

3 mol-1 kJ mol-1 kJ mol-lK;-l K dm^ mol~l kJ mol-1 kJ mol-lR--1

0.045 29 58 0.125 861.4 440 .044 29.53 0.124 756.9

0.048 32 20 0.138 678.5 4 60 .048 32.13 0.137 596.5

0.052 35 12 0.155 532.4 480 .052 35.01 0.153 468.5

0.057 38 45 0.179 415.3 500 057 38.29 0.176 366.0

0.0 78 50 11 0.314 212.8 550 077 49.58 0.300 188.7

600 145 77.29 1.175 82.3

0.149 78 55 1.298 94.70 597.86

1.153 59 43 -2.118 1.9231 597.86

609.85 193 93.44 2.337 65.8

609.85 1 261 78.85 -4.179 2.1560

1.088 55 36 -1.729 1.8662 600

0.796 36 93 -0.494 1.5492 620 925 54.04 -1.456 1.8433

0.693 30. 23 -0.224 1.3972 640 702 37.57 -0.466 1.5538

0.644 26 94 -0.119 1.3072 660 617 31.13 -0.219 1.4085

0.620 25 15 -0.066 1.2482 680 576 27.88 -0.118 1.3207

0.608 24 16 -0.036 1.2069 700 554 26.09 -0.066 1.2622

0.607 23 43 0.000 1.1443 750 539 24.41 -0.011 1.1780

0.623 23 85 0.015 1.1103 800 548 24.45 0.009 1.1341

0.647 24 77 0.022 1.0895 850 565 25.18 0.019 1.1080

0.675 25 96 0.025 1.0757 900 588 26.27 0.024 1.0909

0.705 27 30 0.028 1.0661 950 613 27.54 0.027 1.0790

0.737 28 74 0.030 1.0589 1000 639 28.94 0.029 1.0703

67
dm^

P = 16 MPa P = 18 MPa V2 H2 Cp2 (1)2 T V2 H2 Cp2 (t>2

3 mol-1 kJ mol-1 k.J mol-lK -1 K dm-^ mol~l kJ mol-1 kJ mol-lK--1

0.044 29.49 0.123 678. 7 440 0.044 29.45 0.122 618.2

0.047 32.06 0.134 535.3 4 60 0.041 31.99 0.133 481.9

0.051 34.91 0.151 420.8 480 0.051 34.81 0.149 383.9

0.056 38.13 0.113 329.1 500 0.056 31.98 0.110 300.6

0.062 41.88 0.204 255.4 520 0.062 41. 65 0.199 233. 1 0.010 46.40 0.252 196.0 540 0.0 69 46.04 0.244 119.8

0.082 52.18 0.333 141.9 560 0.080 51.58 0.311 136.2

0.100 60.21 0.499 108. 1 580 0.091 59.15 0.458 100. 1 0.136 13.98 0.969 16.2 600 0.128 11.29 0.823 11.4

0.269 116.56 4.935 46.6144 620.54

1.482 110.88 -9.374 2.4619 620.54

630.19 0.425 160.30 13.813 33.13

630.19 1.942 173.30 -26.743 2.9166

0.777 50.61 -1.093 1.7901 640 1.007 8C. 38 '05 2.2062

0.620 37.27 -0.405 1.5424 660 0.660 4^.86 .. 7 92 1.7287

0.554 31,52 -0.201 1.4101 680 0.552 36.49 -0.336 1.5231

0.520 28.51 -0.111 1.3277 700 0.501 31.60 -0.175 1.4059

0.502 26.82 -0.063 1.2717 720 0.475 28.93 -0.099 1.3303

0.494 25.86 -0.035 1.2315 740 0.461 27.40 -0.057 1.2778

0.490 25.35 -0.017 1.2014 760 0.453 26.53 -0.032 1.2395

0.490 25.14 -0.005 1.1782 780 0.451 26.07 -0.015 1.2104

0.4 92 25.12 0.003 1.1598 800 0.451 25.88 -0.004 1.1877

0.505 25.64 0.016 1.1276 850 0.459 26.13 0,012 1.1484

0.523 26.60 0.022 1.1068 900 0.473 26.95 0.020 1.1235

0.566 29.15 0.028 1.0821 1000 0.509 29.38 0.027 1.0943

P = 20 MPa P = 22 MPa V2 H2 Cp2 <t,2 T V2 H2 Cp2 <t»2

3 mol-1 kJ mol-1 kJ mol-lK--1 K dm^ mol~l kJ mol-1 kJ mol-lK--1

0.044 29.40 0.121 570,0 440 0.044 29.37 0.121 530.8

0.041 31.93 0.132 450.1 460 0.047 31.87 0.131 419.4

0.051 34.11 0.141 354.4 480 0.050 34.62 0.145 330.5

0.055 31.83 0.161 211.9 500 0.055 37.69 0.164 259.4

0.061 41.43 0.194 216.4 520 0.060 41.22 0.190 202.4

0.068 45.10 0.235 166.9 540 0.068 45.38 0.229 156.4

0.019 51.02 0.301 126.8 560 0.077 50.50 0.289 119.2

0.094 58.14 0.425 94.3 580 0.092 57.23 0.396 89.1

0.122 69.05 0.715 61. 6 600 0.117 67.15 0.631 64.5

0.189 91.10 1.816 45.0 620 0.170 85.75 1.415 43.9

640 0.454 164.88 12.525 24.6

0.918 283.29 75 . 652 22.1905 638.95

3.223 347.98 -137.362 3.6870 638.95

2.421 253.20 -60.804 3.3880 640

0.758 63.70 -1.767 2.0090 660 0.992 100.26 -5.267 2.4944

.570 43.54 -0.575 1.6702 680 0.613 54.05 -1.029 1.8697

0.495 35.58 -0.272 1.5010 700 0.501 40.82 -0.422 1.6186

0.458 31.52 -0.149 1.3987 720 0.449 34.71 -0.218 1.4792

0.437 29.23 -0.086 1.3304 740 0.421 31.39 -0.124 1.3903

0.426 27.89 -0.050 1.2818 760 0.406 29.46 -0.073 1.3290

0.420 27.13 -0.028 1.2456 780 0.397 28.32 -0.043 1.2843

0.418 26.73 -0.013 1.2178 800 0.393 27.68 -0.023 1.2505

0.422 26.67 0.008 1.1705 850 0.393 27.26 0.003 1.1940

0.433 27 .34 0.018 1.1411 900 0.401 27.75 0.015 1.1595

.464 29.61 0.026 1.1069 1000 0.427 29.86 0.025 1.1200

68
P = 24 MPa

V2

dm3

P = 26 MPa

V2 H2 Cp2 <t>2 T V2 H2 Cp2 «J)2

3 mol-1 kJ mol-1 kJ mol-lK -1 K dm3 mol~l kJ mol-1 kJ mol-lK -1

0.043 29.33 0.120 498.4 440 0.043 29.29 0.119 471.1

0.047 31.81 0.130 394.0 460 0.046 31.75 0.128 372.7

0.050 34.53 0.143 310.8 480 0.050 34 .44 0.142 294.2

0.054 37.56 0.161 244.2 500 0.054 37.43 0.159 231.4

0.060 41.02 0.186 190.7 520 0.059 40.83 0.182 181.0

0.067 45.07 0.222 147.72 540 0.066 44.79 0.215 140.46

0.076 50.01 0.277 112.98 560 0.075 49.56 0.266 107.74

0.090 56.39 0.371 84.83 580 0.088 55.63 0,349 81.25

0.112 65.50 0.566 61.87 600 0.108 64.05 0.514 59.69

0.157 81.28 1.129 42.83 620 0.146 77.76 0.935 41.92

0.315 127.37 5.021 25.99 640 0.253 110.09 2.911 26.67

1.810 232,90 -34.063 3.6665 660 2.343 505.00 60.889 9.2964

0.695 70,91 -2.000 2.1563 680 0.842 100.67 -4.377 2.6044

0.519 47.86 -0.662 1.7672 700 0.553 57.56 -1.058 1.9600

0.448 38.68 -0.315 1.5748 720 0.454 43.65 -0.453 1.6897

0.412 33.97 -0.174 1.4590 740 0.407 37.04 -0.239 1.5381

0.391 31.28 -0.102 1.3818 760 0.381 33.38 -0.138 1.4410

0.379 29.68 -0.061 1.3269 780 0.366 31.22 -0.083 1.3737

0.373 28.73 -0.036 1.2860 800 0.357 29.91 -0.050 1.3245

0.369 27.90 -0.002 1.2190 850 0.349 28.60 -0.009 1.2455

0.375 28.19 0.012 1.1788 900 0.353 28.66 0.009 1.1991

0.385 29.01 0.020 1.1523 950 0.361 29.35 0.018 1.1688

0.397 30.12 0.024 1.1335 1000 0.371 30,39 0,023 1.1475

P = 30 MPa E = 40 MPa V2 H2 Cp2 (1)2 T V2 H2 Cp2 (j)2

3 mol-1 kJ mol-1 kJ mol-lK -1 K din3 mo 1 ~ ^ kJ mol-1 kJ mol-lK -1

0.043 29.22 0.116 428.1 440 0.042 29.07 0,113 360.8

0.046 31.64 0.125 339.0 460 0.045 31.40 0.121 286.3

0.049 34.28 0.138 268.0 480 0.048 33.91 0.131 227.1

0.053 37.19 0.154 211.2 500 0.052 36.65 0,144 179.8

0.058 40.47 0.175 165.7 520 0.056 39.69 0,160 141.9

0.065 44.25 0.205 129.05 540 0.062 43.11 0.182 111.40

0.073 48.73 0.247 99.51 560 0.068 47.03 0.212 86.86

0.084 54.28 0.314 75.63 580 0.077 51.65 0.253 67.06

0.101 61.63 0.434 56.26 600 0.090 57.29 0.316 51.07

0.131 72.51 0.692 40.44 620 0.108 64.56 0.421 38.13

0.194 92.52 1.477 27.26 640 0.137 74.70 0.615 27,63

0.437 153.52 6.2 62 15.53 660 0.191 90.61 1.029 19.06

1.306 236.68 -13.282 4.885 680 0.312 118.52 1,792 12,03

0.673 90.69 -2.850 2,576 700 0.537 148.65 0,289 6.634

0.488 57.85 -0.931 2.003 720 0.571 118,22 -2,398 3.749

0.411 45.07 -0.434 1.7372 740 0.459 79.41 -1,400 2.637

0.371 38.60 -0.238 1.5832 760 0,382 59.18 -0,712 2,144

0.348 34.90 -0.141 1.4826 780 0.336 48.49 -0,396 1.8761

0.334 32,66 -0.087 1.4121 800 0.309 42.31 -0.238 1.7097

0.319 30.16 -0.024 1.3036 850 0.285 36.86 -0.084 1,4835

0.318 29.69 0.001 1.2425 900 0.265 32.86 -0.024 1.3702

0.323 30.11 0.014 1.2036 950 0.263 32.33 0,000 1.3028

0.331 30.98 0.020 1.1768 1000 0.266 32.66 0.012 1.2583

69
P = 50 MPa P = 60 MPa

V2 H2 Cp2 <t>2 T V2 H2 Cp2 (|)2

3 mol-1 kJ mol-1 kJ mol-lK -1 K dm3 mol-1 kJ mol-1 kJ mol-lR"-1

0.041 28.95 0.110 323.6 440 0.041 28 .85 0.107 301..8 0.044 31.20 0.116 257.3 460 0.043 31.03 0.112 240..3 0.047 33.61 0.125 204.6 480 0.046 33.35 0.120 191,.5 0.050 36.20 0.136 162.60 500 0.049 35.83 0.128 152,.7 0.054 39.04 0.149 128.95 520 0.053 38.51 0.140 121,.6 0.059 42.19 0.166 101.93 540 0.057 41.43 0.153 96,.64

0.065 45.71 0.187 80.18 560 0.062 44 .65 0.169 76,.56

0.072 49.71 0.215 62.64 580 0.068 48.22 0.189 60,.38

0.082 54.37 0.252 48.49 600 0.076 52.23 0.213 47,.32

0.095 59.92 0.306 37.08 620 0.086 56.79 0.244 36,.79

0.113 66.77 0.385 27.88 640 0.099 62.06 0.284 28,.31

0.140 75.61 0.506 20.47 660 0.116 68.22 0.334 21,.51

0.184 87.32 0.669 14.54 680 0.141 75.46 0.389 16,.07

0.254 101.74 0.721 9.884 700 0.175 83.61 0.415 11,.78

0.343 111.60 0.112 6.461 720 0.219 91.25 0.315 8,.473

0.389 103.33 -0.860 4.305 740 0.264 94.55 -0.023 6,.060

0.370 83.55 -0.980 3.139 760 0.292 89.79 -0.431 4,.434

0.332 65.73 -0.691 2.519 780 0.294 79.09 -0.588 3,.416

0.300 55.53 -0.445 2.162 800 0.280 67.81 -0.519 2,.792

0.255 41.87 -0.157 1.725 850 0.240 49.45 -0.236 2,.041

0.245 38.81 -0.064 1.530 900 0.219 41.53 -0.100 1,.727

0.230 35.05 -0.019 1.421 950 0.208 38.19 -0.041 1,.561

0.228 34.66 0.001 1.352 1000 0.204 36.95 -0.012 1,.461

P = 80 MPa P = 100 MPa

V2 H2 Cp2 <t)2 T V2 H2 Cp2 <t>2

3 mol-1 kJ mol-1 kJ mol-lK -1 K dm-3 mol-1 kJ mol-1 kJ mol-lK--1

0.040 28.71 0.102 281.9 440 0.038 28.64 0.097 279,.1 0.042 30.78 0.105 225.0 460 0.040 30.61 0.101 223,.0 0.044 32.95 0.112 180.0 480 0.043 32.66 0.105 178,.8 0.047 35.24 0.117 144.1 500 0.045 34.81 0.110 143,.8 0.050 37.67 0.125 115.55 520 0.048 37.06 0.115 115,.78

0.053 40.27 0.135 92.62 540 0.051 39.44 0.122 93,.37

0.057 43.06 0.145 74.17 560 0.054 41.95 0.129 75,.35

0.062 46.06 0.156 59.30 580 0.058 44.59 0.136 60,.82

0.068 49.30 0.168 47.30 600 0.062 47.37 0.142 49,.08

0.075 52.78 0.181 37.60 620 0.067 50.27 0.148 39,.57

0.083 56.52 0.194 29.78 640 0.073 53.29 0.153 31,.89

0.093 60.52 0.206 23.48 660 0.080 56.40 0.157 25,.67

0.105 64.74 0.215 18.42 680 0.088 59.53 0.156 20,.65

0.119 69.06 0.215 14.385 700 0.097 62.62 0.151 16,.60

0.137 73.19 0.194 11.193 720 0.107 65.52 0.138 13,.36

0.156 76.58 0.138 8.701 740 0.118 , 68.06 0.114 10,.777

0.176 78.39 0.036 6.794 760 0.129 69.97 0.075 8,.730

0.193 77 .80 -0.096 5.372 780 0.141 70.97 0.023 7,.123

0.204 74.65 -0.211 4.340 800 0.151 70.83 -0.038 5,.876

0.205 61.53 -0.261 2.883 850 0.166 65.61 -0.153 3 .891

0.192 50.97 -0.160 2.239 900 0.166 57.61 -0.152 2 .888

0.181 45.04 -0.084 1.912 950 0.161 51.19 -0.103 2 .356

0.175 42.07 -0.040 1.723 1000 0.156 47.16 -0.060 2 .049

70
APPENDIX B. The FORTRAN Code for the Model Parameters

The FORTRAN programs used for the generation of the tables and the

calculation of the various properties are those described in ref . 5 with

the following changes to DATA statements:

In the subroutine BLOCKDATA use the following lines in place of the

similar lines from the listing:

DATA PH0,FTT,FVV,PHC,THC/1.253D0,0.978D0,1.233D0, .067D0, - .124D0/

DATA PHD,PHT,THD,THT/-0.125D0, -0.051D0, - .012D0, .018D0/

DATA TI1,PI1,DI1/126.20D0,3.400D0,311.D0/

*, WM0,WM1,R/18.0152D0,28.01D0,8.31441D0/, ZO/ . 317763D0/

In the subroutine FZl use the following DATA statement to define the

parameters of the ideal gas properties of N2

:

DATA AO/ 0.576564D0, -8.26099D0, -1.291303D0/

The rather simplified program should not be used blindly since accurate

information is not available as to the location of phase boundaries.

The phase for which calculations will be made is determined by the

initial guess for the densities.

*U.S. G.P.0.:1993-341-832:81070 71

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