1989 Volume 32 Issue 2 Pages 92-96
A new modification for the three-parameter pseudo-cubic equation of state is proposed to improve the accuracy on the performance of the saturated properties of polar substances. All temperature coefficients of the parameters in the equation of state are correlated with the acentric factor and reduced dipole moment. To better improve the accuracy on the performance of vapor pressures, the individual values of one particular coefficient among the others are recommended. The equation of state modified in the present study is applicable not only to polar substances but also to nonpolar components. The present equation of state completely satisfies the critical point requirements.
