P-V-T Equation of state of gold to high pressure and temperature, derived from statistical moment method

P-V-T equation of state (P-V-T EOS) of gold to high pressure and temperature are studied by the statistical moment method. We obtain P-V-T equation of state for gold of simple analytic form, without adjustment parameters. The numerical results of the pressure P at compression x on the isotherms T of gold by this equation of state in good agreement with the data calculated by the semi-empirical equations of state, which have adjustable parameters, up to 600kbar and 2000K. The thermodynamic quantities of gold are also obtained from this equation of state. The numerical results of the thermal expansion coefficient, heat capacity of gold are in excellent agreement with the experimental data. Due to the simplicity and efficiency of gold equation of state obtained, this equation of state can be used as pressure scales to 600kbar and 2000K. © 2022 Elsevier Ltd