Calculation of Molar Volume as a Function of Temperature Close to the Melting Point in Benzene

摘要

We study here the temperature dependence of the molar volume for constant pressures in benzene close to the melting point. By analyzing the experimental data for the thermal expansivity at various pressures in benzene, we calculate the molar volumes as functions of temperature in this system. Our calculations show that discontinuities in the molar volume decrease as the melting temperatures increase along the melting line when the constant pressures vary from 70.5 MPa to 175.2 MPa, as also observed experimentally. Our calculated values of molar volume can be compared with the observed data in benzene under the temperature and pressure conditions given here.