CALCULATION OF THERMODYNAMIC PROPERTIES OF DENSE FLUID NEON USING STATISTICAL-MECHANICAL PERTURBATION-THEORY .2. RESULTS UP TO 6 GPA AND EQUATIONS OF STATE

The theory and potentials described in the preceding paper are used for the calculation of thermodynamic properties of fluid neon between 73 and 348 K and up to the melting iine. A polynomial equation of state for correlating the densities between 73 and 323 K and between 30 MPa and 1 GPa is presented. The calculations have been extended up to 6 GPa and the performance of the EXP-6 effective pair potential and the HFD-C2, HFD-B and XC3 pure pair potentials is compared. The effect of the Axilrod-Teller many-body correction term on the pure pair potentials is studied. In the ranges 98-348 K and 0-6-6 GPa the density data are correlated by a MBWR equation of state, and a polynomial expression is given for the sound velocity in these ranges. The pressure and temperature dependences of the specific heat at constant volume are shown. A comparison is made between the experimental pVT and sound-velocity data of Kimura et al. at 295 K and up to 3.5 GPa and our calculations. © 1990 Taylor & Francis Ltd.