Thermodynamics of Liquid In–Sb–Zn Solutions from Mass Spectrometry of Knudsen-Cell Effusates

Abstract
Solution thermodynamics of the In–Sb system in the presence of 0.02 mole fraction zinc have been studied by a mass‐spectrometric Knudsen effusion technique. Activity coefficients for zinc and antimony were obtained, and partial molar heats of solution of antimony were determined from the partial molar heats of vaporization of the element. Partial molar heats and entropies of solution of zinc were calculated from the temperature dependence of the zinc activity coefficients.