Abstract

Heats and free energies of mixing for dilute solutions of n-alkanes in benzene have been analysed according to the new Flory theory. The respective importance of interactions and of free-volume differences in the excess thermodynamic quantities in these systems are pointed out. Heats of mixing are well accounted for by the new Flory theory but mixing entropies are different from the theoretically expected values. This seems to be due to orientation phenomena rather than to inaccuracies in the parameters for the liquids.

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