Thermal Diffusion in Binary Liquid Mixtures of Molecules of Simple Symmetry

Abstract

A single-stage two-cell apparatus for measuring thermal diffusion in liquid mixtures has been developed. Thermal-diffusion measurements are presented for a series of binary mixtures of molecules of simple symmetry over a range of temperature from 5°—55°C. The theory presented in a previous paper applies quite satisfactorily. The results indicate that the proposed measure of the cohesive energy Hi=(T∂p∂T)i(V−T∂V∂T)i,gives reasonably quantitative results.