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本文推导了严格的热力学关系,使仅根据混合物的饱和蒸气中各组分的体积浓度就可以作出液体混合物的等温蒸气压图并计算活度系数。叙述了一种测定浓度的光学方法。实际应用於苯-氯苯体系证明由静态方法所得的数据相当於真正的热力学平衡,因为数据符合Gibbs-Duhem关系。参考文献见英文部分。
In this paper, a strict thermodynamic relationship is derived so that the isothermal vapor pressure diagram of a liquid mixture can be made and the activity coefficient calculated based only on the volume concentration of each component in the saturated vapor of the mixture. An optical method of determining concentration is described. The practical application to the benzene-chlorobenzene system proves that the data obtained by the static method correspond to the true thermodynamic equilibrium because the data are in accordance with the Gibbs-Duhem relationship. See references in English section.