List of thermodynamic properties - wikipedia List of thermodynamic properties Main article : Intensive and extensive properties Within thermodynamics, a physical property is any property that is measurable, and whose value describes a state of a physical system. Some constants, such as the ideal gas constant, R, do not describe the state of a system, and so are not properties. On the other hand, some constants, such as K ( the freezing point depression constant, or cryoscopic constant ), depend on the identity of a substance, and so may be considered to describe the state of a system, and so may be considered physical properties. `` Specific '' properties are expressed on a per mass basis. If the units were changed from per mass to, for example, per mole, the property would remain as it was ( i.e., intensive or extensive ). Regarding Work and Heat Work and heat are not thermodynamic properties, but rather process quantities : flows of energy across a system boundary. Systems do not contain work, but can perform work, and likewise, in formal thermodynamics, systems do not contain heat, but can transfer heat. Informally, however, a difference in the energy of a system that occurs solely because of a difference in its temperature is commonly called heat, and the energy that flows across a boundary as a result of a temperature difference is `` heat ''. Altitude ( or elevation ) is usually not a thermodynamic property. Altitude can help specify the location of a system, but that does not describe the state of the system. An exception would be if the effect of gravity needed to be considered in order to describe a state, in which case altitude could indeed be a thermodynamic property. Thermodynamic properties and their characteristics Property Symbol Units Extensive ? Intensive ? Conjugate Potential ? Activity a ( displaystyle a ) -- Y Chemical potential μ i ( displaystyle mu _ ( i ) ) kJ / mol Y Particle number N i ( displaystyle N_ ( i ) ) Compressibility ( adiabatic ) β S ( displaystyle \beta _ ( S ) ), κ ( displaystyle kappa ) Pa Y Compressibility ( isothermal ) β T ( displaystyle \beta _ ( T ) ), κ ( displaystyle kappa ) Pa Y Cryoscopic constant K f ( displaystyle K_ ( f ) ) K kg / mol Y Density ρ ( displaystyle \rho ) kg / m Y Ebullioscopic constant K b ( displaystyle K_ ( b ) ) K kg / mol Y Enthalpy H ( displaystyle H ) J Y Y Specific enthalpy h ( displaystyle h ) J / kg Y Entropy S ( displaystyle S ) J / K Y Temperature T ( displaystyle T ) Y ( entropic ) Specific entropy s ( displaystyle s ) J / ( kg K ) Y Fugacity f ( displaystyle f ) N / m2 Y Gibbs free energy G ( displaystyle G ) J Y Y Specific Gibbs free entropy g ( displaystyle g ) J / ( kg K ) Y Gibbs free entropy Ξ ( displaystyle Xi ) J / K Y Y ( entropic ) Grand / Landau potential Ω ( displaystyle Omega ) J Y Y Heat capacity ( constant pressure ) C p ( displaystyle C_ ( p ) ) J / K Y Specific heat capacity ( constant pressure ) c p ( displaystyle c_ ( p ) ) J / ( kg K ) Y Heat capacity ( constant volume ) C v ( displaystyle C_ ( v ) ) J / K Y Specific heat capacity ( constant volume ) c v ( displaystyle c_ ( v ) ) J / ( kg K ) Y Helmholtz free energy A ( displaystyle A ), F ( displaystyle F ) J Y Y Helmholtz free entropy Φ ( displaystyle Phi ) J / K Y Y ( entropic ) Internal energy U ( displaystyle U ) J Y Y Specific internal energy u ( displaystyle u ) J / kg Y Internal pressure π T ( displaystyle pi _ ( T ) ) Pa Y Mass m ( displaystyle m ) kg Y Particle number N i ( displaystyle N_ ( i ) ) -- Y Chemical potential μ i ( displaystyle mu _ ( i ) ) Pressure p ( displaystyle p ) Pa Y Volume V ( displaystyle V ) Temperature T ( displaystyle T ) Y Entropy S ( displaystyle S ) Thermal conductivity k ( displaystyle k ) W / ( m K ) Y Thermal diffusivity α ( displaystyle alpha ) m2 / s Y Thermal expansion ( linear ) α L ( displaystyle alpha _ ( L ) ) Y Thermal expansion ( area ) α A ( displaystyle alpha _ ( A ) ) Y Thermal expansion ( volumetric ) α V ( displaystyle alpha _ ( V ) ) Y Vapor quality χ ( displaystyle chi ) -- Y Volume V ( displaystyle V ) m Y Pressure P ( displaystyle P ) Specific volume v ( displaystyle v ) m / kg Y See also Dimensionless numbers Thermodynamic databases for pure substances Thermodynamic variable Conjugate variables References Jump up ^ Aylward, Gordon ; Findlay, Tristan ( 2002 ), SI Chemical Data 5th ed. ( 5 ed. ), Sweden : John Wiley & Sons, p. 202, ISBN 0 - 470 - 80044 - 5 Jump up ^ Cengel, Yunus A. ; Boles, Michael A. ( 2002 ). Thermodynamics : an engineering approach. Boston : McGraw - Hill. p. 79. ISBN 0 - 07 - 121688 - X. Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_thermodynamic_properties&oldid=805900068 '' Categories : Physics - related lists Talk About Wikipedia Català فارسی Русский 中文 Edit links This page was last edited on 18 October 2017, at 10 : 19. Text is available under the Creative Commons Attribution - ShareAlike License ; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia ® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. About Wikipedia

Question: what is property of a system in thermodynamics
Answer: any property that is measurable, and whose value describes a state of a physical system