Thermodynamics of dense molecular hydrogen-helium mixtures at high pressure

Journal Article · Mon Feb 29 23:00:00 EST 1988 · Icarus; (United States)

DOI:https://doi.org/10.1016/0019-1035(88)90063-2· OSTI ID:7251267

Marley, M S; Hubbard, W B

Effective intermolecular pair potentials derived from liquid hydrogen and helium shock wave experiments are presently used in Monte Carlo simulations of mixtures of hydrogen and helium, at densities of up to 1.2 g/cu cm. The model interaction Helmholtz free energy derived accurately reproduces both the Monte Carlo calculation results and the experimental data obtained for densities of up to about 0.6 g/cu cm. An equation of state is derived from the free energy expression that could be useful in interior models of such Jovian planets as Saturn. 18 references.

• Research Organization: Arizona Univ., Tucson (USA)
• OSTI ID: 7251267
• Journal Information: Icarus; (United States), Journal Name: Icarus; (United States); ISSN ICRSA
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ENERGY
EQUATIONS
EQUATIONS OF STATE
FREE ENERGY
HIGH PRESSURE
MATHEMATICAL MODELS
MONTE CARLO METHOD
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PLANETS
POTENTIALS
SATURN PLANET
SHOCK WAVES
THERMODYNAMIC PROPERTIES
THERMODYNAMICS