摘要
报导一种不经过溶液模型，仅依赖数值方法寻求活度系数与温度的关系，进而运用Ｇｉｂｂｓ─Ｈｅｌｍｈｏｌｔｚ方程实现由恒温汽液平衡数据推荐混合焓的方法，以甲醇─１，２─二氯乙烷体系为例所作的推算结果表明该法是切实可行的。
A method for the prediction of enthalpies of mixing of liquid mixtures from isothermal vapour-liquld equilibrium data is described. Unlike a lot of existing methods which were based on solution mod-els, this method establishes the temperature relation of activity coefficients of the components by math-ematic method only. Then, the enthalpies can be calculated from, Gibbs-Helmholtz equation easily.It is shown to be good practice that the enthalpies of mixing of methanol-1, 2-dichloroethane mixtureswere calculated by the new method.
出处
《化学工程》
CAS
CSCD
北大核心
1995年第5期7-10,共4页
Chemical Engineering(China)
关键词
混合焓
恒温汽液平衡
汽液平衡
相平衡
enthalpy of mixing, isothermal vapour-liquid equilibrium data, calculation method
