H2
H2 provides ideal gas thermodynamic properties for hydrogen valid over the temperature range from 20 K to 6000 K based on the property information in McBride et al. (2002) (200 K to 6000 K) and Hilsenrath et al. (1955) (20 K to 200 K). The reference state for specific enthalpy is based on the enthalpy of formation relative to the elements at 25 C. The reference state for specific entropy is based on the Third Law of Thermodynamics. The reference values are from:
Bonnie J. McBride, Michael J. Zehe, and Sanford Gordon
"NASA Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species"
NASA/TP-2002-211556, Sept. 2002
https://www.grc.nasa.gov/WWW/CEAWeb/
Joseph Hilsenrath, Charles W. Beckett, William S. Benedict, Lilla Fano, Harold J. Hoge, Joseph F. Masi, Ralph L. Nuttall, Yeram S. Touloukian, and Harold W. Woodley
"Tables of Thermal Properties of Gases"
National Bureau of Standards Circular 564
issued November 1, 1955
Transport property correlations are based on tabular data available from:
Thermophysical Properties of Matter
Vol. 3: Thermal Conductivity, Y.S. Touloukian, P.E. Liley, S.C. Saxena
Vol. 11: Viscosity, Y.S. Touloukian, S.C. Saxena, and P. Hestermans
IFI/Plenun, NY, 1970, ISBN 0-306067020-8
The range of validity of the viscosity correlation is between 10 K and 2000 K. The thermal conductivity correlation covers the range between 20 and 1540 K.
Note that fluid H2 provides ideal gas properties. Use fluid Hydrogen for real gas properties for hydrogen.