equation of state for mercury

an analytical equation of state by song and mason is developed to calculate the pvt properties ofmercury. the equation of state is based on the statistical-mechanical perturbation theory of hard convexbodies and can be written as a fifth-order polynomial in the density. there exists three temperaturedependentparameters in the equation of state; the second virial coefficient, an effective molecular volume,and a scaling factor for the average contact pair distribution function of hard convex bodies. thetemperature-dependant parameters have been calculated using corresponding-states correlations based on theheat of vaporization and the liquid density at the melting point. the average absolute deviation for thecalculated density of mercury in the saturation and compressed state is 0.38 .