Appendix B

Thermophysical Properties

Table B.1

Thermodynamic Properties of Selected Substances

SubstanceRTPTTPPΔHfusNBPΔHboilPcTcvcZcωab
Hydrogen412413.9673.59454.520.37448.712.9633.150.03363.135− 0.218726,7850.0165
Para-hydrogen412413.870.41432.520.27446.612.8632.940.03273.228− 0.218626,6700.0165
Oxygen259.854.361.46324390.19213.250.43154.60.002173.6610.0222149,7690.0198
Nitrogen296.863.15125.2215.577.36199.233.96126.20.002803.9360.0372148,2250.0240
Helium20771114.22220.72.2755.1950.011963.967− 0.38537510.0147
Neon41224.5643288.1627.1185.7726.844.490.001883.62− 0.03723,3450.0107
Argon208.183.81688.9172.287.3169.448.63150.70.001614.002− 0.002147,5870.0200
Xenon63.32161.4827.696.72164.995.8758.4289.70.0013.1420.0036454,3640.0320
Fluorine

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