APPLICATION OF THE PSEUDO-2-FLUID THEORY TO MIXTURES

Abstract

Values of the exponent m in the configurational energy expression, E=-Nrsη/2v^m, have been obtained from enthalpy of mixing data for 17 non-polar and weakly polar liquids and several alcohols. With these pure component m values and volume fraction averaged mixture m values, the pseudo-2-fluid theory is successfully applied to fifty binary mixtures of nonpolar and weakly polar constituents and ten binary mixtures containing normal alcohols. Agreement between the excess enthalpies calculated from density data and observed H^E values approaches the limits of experimental accuracy.