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Equation of State for Fluid and Solid Hydrogen-Isotopes H2, D2, and T2

Published online by Cambridge University Press:  21 February 2011

Hiroyasu Shimizu*
Affiliation:
Department of Electrical Engineering, Gifu University, 1–1 Yanagido, Gifu 501–11, Japan
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Abstract

The calculations of the P-V isotherms of fluid hydrogen isotopes H2 , D2 , and T2 up to their freezing pressures at 200, 300 and 500 K have been performed for 4 kinds of intermolecular potentials by using the modified hard-sphere variational perturbation theory with a quantum correction. By comparing the results with the 300 K experimental equation of state, it has turned out that the agreement is good for the potentials of Silvera-Goldman and Nellis et al. except near the freezing point of H2 . The quantum pressures were estimated, and their dependences on volume, molecular mass, and temperature are discussed quantitatively. We discuss the discrepancy of the P-V isotherms between experiments by Brillouin scattering and theoretical results for H2 near the freezing point, including the recent solid isotherms to higher pressures.

Type
Research Article
Copyright
Copyright © Materials Research Society 1984

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References

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