Abstract

Isothermal P−x data (VLE) and excess enthalpy (HE) data for the two binary systems benzene + benzonitrile and toluene + benzonitrile have been measured by means of a computer-operated static apparatus and an isothermal flow calorimeter. Activity coefficients at infinite dilution γi∞ have been derived by fitting a flexible Legendre polynomial to the experimental VLE data. Temperature-dependent interaction parameters for different excess Gibbs energy (GE) models have been fitted simultaneously to the experimental VLE and HE data. The experimental results have been compared with the data of other authors.

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