Abstract
Abstract The Maron theory of nonelectrolyte solutions has been applied to the system benzene-biphenyl in order to correlate the available thermal and vapor pressure data. Using the thermal data, the interaction parameter was evaluated as a function of concentration and temperature, and it was then used to predict the activity coefficients of benzene. The results obtained agree within 0.3% with the experimental measurements over the entire concentration range and at temperatures ranging from 15 to 80°C. The deduced equations were also used to calculate the fusion functions for biphenyl as a function of temperature as well as its melting point. The success of the Maron theory in correlating the thermodynamic behavior of this system is of particular interest, since various statistical mechanical approaches to this system have not been able to attain such a correlation.
Published Version
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