Nitromethane ( data page ) - wikipedia Nitromethane ( data page ) This page provides supplementary chemical data on nitromethane. Contents 1 Material Safety Data Sheet 2 Structure and properties 3 Thermodynamic properties 4 Vapor pressure of liquid 5 Distillation data 6 Spectral data 7 References Material safety data sheet The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet ( MSDS ) for this chemical from a reliable source such as SIRI, and follow its directions. MSDS is available from Mallinckrodt Baker. Structure and properties Structure and properties Index of refraction, n 1.3935 at 20 ° C Abbe number ? Dielectric constant, ε 35.87 ε at 30 ° C Bond strength ? Bond length ? Bond angle ? Magnetic susceptibility ? Surface tension 39.8 dyn / cm at 0 ° C 36.8 dyn / cm at 20 ° C 26.1 dyn / cm at 100 ° C Viscosity 0.853 mPa s at 0 ° C 0.620 mPa s at 25 ° C Thermodynamic properties Phase behavior Triple point 244.77 K ( -- 23.38 ° C ), ? Pa Critical point 588 K ( 315 ° C ), 5870 kPa Std enthalpy change of fusion, Δ H 9.7 kJ / mol Std entropy change of fusion, Δ S 39.6 J / ( mol K ) Std enthalpy change of vaporization, Δ H 38.3 kJ / mol Std entropy change of vaporization, Δ S 128.36 J / ( mol K ) Solid properties Std enthalpy change of formation, Δ H ? kJ / mol Standard molar entropy, S ? J / ( mol K ) Heat capacity, c ? J / ( mol K ) Liquid properties Std enthalpy change of formation, Δ H -- 113 kJ / mol Standard molar entropy, S 171.75 J / ( mol K ) Enthalpy of combustion, Δ H -- 709 kJ / mol Heat capacity, c 105.98 J / ( mol K ) Gas properties Std enthalpy change of formation, Δ H -- 81 kJ / mol Standard molar entropy, S ? J / ( mol K ) Heat capacity, c 57.3 J / ( mol K ) at 25 ° C Vapor pressure of Liquid P in mm Hg 10 40 100 400 760 T in ° C -- 29.0 2.8 27.5 46.6 82.0 101.2 Table data obtained from CRC Handbook of Chemistry and Physics 44th ed. log of Nitromethane vapor pressure. Uses formula : log e ⁡ P m m H g = ( displaystyle scriptstyle log _ ( e ) P_ ( mmHg ) = ) log e ⁡ ( 760 101.325 ) − 10.20778 log e ⁡ ( T + 273.15 ) − 7217.173 T + 273.15 + 83.18124 + 8.369119 × 10 − 06 ( T + 273.15 ) 2 ( displaystyle scriptstyle log _ ( e ) ( ( \frac ( 760 ) ( 101.325 ) ) ) - 10.20778 log _ ( e ) ( T + 273.15 ) - ( \frac ( 7217.173 ) ( T + 273.15 ) ) + 83.18124 + 8.369119 \times 10 ^ ( - 06 ) ( T + 273.15 ) ^ ( 2 ) ) obtained from CHERIC Distillation data Vapor - liquid Equilibrium for Nitromethane / Ethanol P = 730 mm Hg BP Temp. ° C % by mole ethanol liquid vapor 97.7 3.0 15.7 93.4 4.7 22.3 88.9 8.5 32.9 86.1 12.2 39.5 83.6 16.6 45.3 80.6 25.6 52.9 79.2 31.8 56.3 77.9 45.1 63.5 77.0 53.9 66.9 77.1 58.9 68.6 76.5 64.6 70.5 76.4 72.4 74.0 76.6 78.7 77.3 76.5 81.9 79.4 76.7 85.9 82.2 76.9 91.4 87.1 77.7 95.3 93.0 77.8 97.3 96.5 Vapor - liquid Equilibrium for Nitromethane / Methanol P = 730 mm Hg BP Temp. ° C % by mole methanol liquid vapor 96.9 1.5 13.3 93.1 2.6 22.8 89.1 4.8 33.4 84.8 7.5 42.9 82.1 9.6 48.4 77.9 15.2 57.0 72.9 25.4 67.3 71.1 31.4 70.4 68.2 42.6 74.7 67.3 49.3 76.1 65.6 67.8 81.8 65.1 74.7 83.8 65.0 81.3 86.4 64.6 88.6 90.1 64.5 91.4 92.1 64.4 96.0 95.6 64.5 99.4 99.3 Spectral data UV - Vis λ ? nm Extinction coefficient, ε ? IR Major absorption bands ? cm NMR Proton NMR Carbon - 13 NMR Other NMR data MS Masses of main fragments References Jump up ^ Lange 's Handbook of Chemistry, 10th ed. pp 1661 - 1663 Jump up ^ CRC Handbook of Chemistry and Physics, 44th ed. pp 2258 - 2263 ^ Jump up to : `` Pure Component Properties ''. Chemical Engineering Research Information Center. Retrieved 20 May 2007. ^ Jump up to : `` Binary Vapor - Liquid Equilibrium Data '' ( Queriable database ). Chemical Engineering Research Information Center. Retrieved 20 May 2007. `` NIST Standard Reference Database ''. Except where noted otherwise, data relate to standard ambient temperature and pressure. Disclaimer applies. Retrieved from `` https://en.wikipedia.org/w/index.php?title=Nitromethane_(data_page)&oldid=605196105 '' Categories : Chemical data pages Hidden categories : Use dmy dates from September 2010 Talk Contents About Wikipedia Add links This page was last edited on 21 April 2014, at 20 : 10. About Wikipedia

Question: what is the standard enthalpy of formation of nitromethane in kj/mol
Answer: 9.7 kJ/mol