.FCSys.Species.H2.Gas.Fixed

Fixed properties

Information

Assumptions:

  1. The generalized resistivities (η, θ) are fixed (e.g., independent of thermodynamic state).
  2. Ideal gas

The default resistivities (η = 1/(89.6e-7*U.Pa*U.s) and θ = U.m*U.K/(183e-3*U.W)) are based on data of H2 gas at 1 atm and 300 K from Incropera and DeWitt [Incropera2002, pp. 919–920]. Table 1 lists the properties at other temperatures.

Table 1: Properties of H2 gas at 1 atm [Incropera2002, pp. 919–920].
T
/U.K		 cp*U.kg*U.K
/(U.J*Data.m)		 η
*U.Pa*U.s		 θ*U.W
/(U.m*U.K)
100 11.23e3 1/42.1e-7 1/67.0e-3
150 12.60e3 1/56.0e-7 1/101e-3
200 13.54e3 1/68.1e-7 1/131e-3
250 14.06e3 1/78.9e-7 1/157e-3
300 14.31e3 1/89.6e-7 1/183e-3
350 14.43e3 1/98.8e-7 1/204e-3
400 14.48e3 1/108.2e-7 1/226e-3
450 14.50e3 1/117.2e-7 1/247e-3
500 14.52e3 1/126.4e-7 1/266e-3
550 14.53e3 1/134.3e-7 1/285e-3
600 14.55e3 1/142.4e-7 1/305e-3
700 14.61e3 1/157.8e-7 1/342e-3
800 14.70e3 1/172.4e-7 1/378e-3
900 14.83e3 1/186.5e-7 1/412e-3
1000 14.99e3 1/201.3e-7 1/448e-3
1100 15.17e3 1/213.0e-7 1/488e-3
1200 15.37e3 1/226.2e-7 1/528e-3
1300 15.59e3 1/238.5e-7 1/568e-3
1400 15.81e3 1/250.7e-7 1/610e-3
1500 16.02e3 1/262.7e-7 1/655e-3
1600 16.28e3 1/273.7e-7 1/697e-3
1700 16.58e3 1/284.9e-7 1/742e-3
1800 16.96e3 1/296.1e-7 1/786e-3
1900 17.49e3 1/307.2e-7 1/835e-3
2000 18.25e3 1/318.2e-7 1/878e-3

The specific heat capacity is not fixed because it would affect the chemical potential and result in an incorrect cell potential.

For more information, please see the Species model.

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