Abstract

A. D. Vishwakarma and D. N. Vora

Densities for mixtures for PEG 200 and PEG 400 with benzene have been studied. Excess volume (VE) for binary mixtures are calculated over entire range of composition at 303K, 313 K and 323K temperatures using standard relation. The data are fitted to an empirical equation. Vε/X1X2=[a+b(2x1-1)+c(2X1-1)2] where constants a, b and c are evaluated by the least squares method along with standard deviation a. The negative (δVE / δT)p is observed for both systems. The temperature effect has been studied in the light of specific interaction phenomena.

benzene; binary mixtures; interaction phenomena

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