On the thermodynamics of associated solutions. I. An analytical method for determining the enthalpy and entropy of association and equilibrium constant for pure liquid substances

Abstract

This article presents a new method for determining the enthalpy and entropy of association of pure compounds. The only data needed are the temperature and the enthalpy of vaporisation at the normal boiling point. The enthalpy and entropy values can be used in an association theory to calculate the association constants KA for pure substances exhibiting hydrogen bonding. Here KA values are estimated using Kretschmer-Wiebe theory, which has proved very useful for calculations of the phase equilibria of associated solutions. Excess enthalpy and phase equilibria data for the determination of the pure-component association constant and hydrogen-bond enthalpy are no longer necessary. © 1981.