EVALUATION OF CUBIC EQUATION OF STATE

Abstract

Eleven volume-cubic equations of state were evaluated for their capabilities of predicting pure-substance properties, such as compressibility factor, fugacity coefficient, enthalpy departure, vapor pressure, saturated liquid and vapor volumes, compressed liquid volume, second virial coefficient and latent heat of vaporization. The calculated results were compared with available experimental data and/or generalized correlations. Furthermore, comparisons are graphically presented to depict the characteristics of the equations tested. It appears that the Adachi-Lu-Sugie equation is recommendable for its overall performance.