title: The dissociation and equation of state of dense fluid oxygen at high pressures and high temperatures.
abstract: The dissociation, pressure, and internal energy of dense fluid oxygen at high temperatures and densities have been calculated from the free-energy functions using the self-consistent fluid variational theory. In this paper, we focused on a mixture of oxygen atoms and molecules, and investigated the phenomenon of pressure dissociation at finite temperature. The single-shock Hugoniot derived from this equation of state agrees well with gas-gun experiments for pressure versus density. The equation of state and dissociation degree are predicted in the ranges of temperature of 5000-16,000 K and density of 0.1-4.5 g/cm(3). These data are formulated in the analytical forms of dissociation degree-density-temperature and pressure-density-temperature equation of state.
authors.affiliation: Laboratory for Shock Wave and Detonation Physics Research, Institute of Fluid Physics, Mianyang, Sichuan, PR China. chenqf01@gmail.com
authors.forename: Q F
authors.initials: QF
authors.lastname: Chen
authors.forename: L C
authors.initials: LC
authors.lastname: Cai
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
authors.forename: Y J
authors.initials: YJ
authors.lastname: Gu