Liquid-Vapour Equilibria. II. The System Benzene-n-heptane

Abstract

Liquid-vapour equilibrium data for the system benzene-n-heptane have been measured at intervals over the whole composition range at 60 and 80 °C. and for equimolar mixtures at 60, 70, and 85 °C. The changes in the thermodynamic functions on mixing, both at constant pressure and at constant volume, have been calculated. The values of these changes on mixing at constant volume have been compared with values predicted from component properties. The conditions for azeotrope formation in this system have been defined.