大学化学 >> 2015, Vol. 30 >> Issue (1): 82-88.doi: 10.3866/PKU.DXHX20150117

学生园地 上一篇    

共沸点存在的充分条件

梁妍钰   

  1. 清华大学化学系 北京 100084
  • 发布日期:2015-02-25
  • 基金资助:

    清华学堂人才培养计划

Sufficient Conditions for Existence of the Azeotropic Point

Liang Yanyu   

  1. Department of Chemistry, Tsinghua University, Beijing 100084, China
  • Published:2015-02-25

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摘要：

以纯液体蒸气压和亨利系数为出发点,讨论了二组分气液相图存在共沸点的充分条件。结合纯液体蒸气压和亨利系数的物理意义,对共沸点存在的条件进行了说明。

关键词: 二组分气液相图, 共沸点, 亨利常数, 纯液体饱和蒸气压, 定标粒子理论

Abstract:

Starting from the saturated vapor pressure of pure liquid and the Henry constant, this article discusses the sufficient conditions of the existence of the azeotrope point in two-component liquid-vapor phase diagrams. Furthermore, the conclusion is illustrated by examples, combined with the physical meaning of these constants.

Key words: Two-component liquid-vapor phase diagram, Azeotrope point, Henry constant, Saturated vapor pressure of pure liquid, Scaled particle theory