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P: Plasmaphysik

P 9: Dense Plasmas and Plasma Diagnostic (Poster Session)

P 9.5: Poster

Tuesday, April 3, 2001, 12:30–15:00, AT2

Thermodynamic Properties of Dense Hydrogen — •Hauke Juranek and Ronald Redmer — Uni Rostock, FB Physik, 18051 Rostock, Germany

In recently reported single shock-wave laser-driven experiments, the principal Hugoniot was determined up to 300 GPa. It has been shown that dissociation of hydrogen molecules becomes operative under such ultra-high pressures. We have generalized the standard fluid variational theory for a one-component system to a two-component system with a reaction (dissociation) [1]. We use this model to calculate the thermodynamic properties of dense hydrogen, sound velocity, and heat capacity. The results are compared with standard equation of states for hydrogen.

[1] H. Juranek, R. Redmer, J. Chem. Phys. 112, 3780 (2000).