Effect of Size and Shape in Non-Polar Liquid Mixtures

Department of Physical Chemistry,

Indian Association for the Cultivation of Science, Jadavpur, Calcutta-32.

Received 4 September 1972

The general corresponding states theory of Prigogine and coworkers applicable to the therodynamic properties of mixtures of spherical molecules and polymer solutions, has been extended to the mixtures of non-spherical :molecules and polymer solutions having non-spherical segments by using a potential originally due to Rowlinson. The :mixing functions are divided into two contributions, central and non-central. The results from the theory are contrasted with Flory and Prigogine theory for several mixtures, For condensed gas mixtures results are similar and non-central interaction is negligible but for other globular mixtures non-central terms are found to be large and important. The theory explains the experimental data well.