大学化学 >> 2019, Vol. 34 >> Issue (3): 60-67.doi: 10.3866/PKU.DXHX201808021

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物理化学课程中相平衡理论的教学策略

付先亮*()   

  • 收稿日期:2018-08-20 录用日期:2018-09-21 发布日期:2019-03-09
  • 通讯作者: 付先亮 E-mail:fuxiliang@gmail.com

Teaching Strategy of Phase Equilibrium Theory in Physical Chemistry Course

Xianliang FU*()   

  • Received:2018-08-20 Accepted:2018-09-21 Published:2019-03-09
  • Contact: Xianliang FU E-mail:fuxiliang@gmail.com

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摘要：

针对物理化学相平衡章节体系多变、知识点繁多、相图抽象等问题提出了一套系统的教学策略。首先对相平衡中的基本概念和定律进行论述，并强调重、难点；随后对章节知识点进行总结归纳，通过表格系统罗列相图的体系、相律、应用和术语；最后提出相图解读通行方法，并结合具体例子讲解这些方法、相律以及杠杆规则如何使用。

关键词: 相平衡, 相图分析, 相律, 杠杆规则, 教学策略

Abstract:

The teaching of phase equilibrium theory in the physical chemistry course encounters some problems, such as the varieties of the phase systems and the knowledge points and the difficulty to understand the abstractive phase diagrams. To solve these problems, a systematic teaching strategy is proposed in this paper. The basic concepts and the laws in phase equilibrium theory are first introduced, and the key points are emphasized. The knowledge points in the chapter were then summarized in a table, including the phase diagram systems, the phase laws, the application of the diagrams, and the involved items. Finally, the general methods for the understanding of phase diagrams were proposed. Some examples were further given to explain how the methods, the phase law, and the lever rule were used in solving some specific problems.

Key words: Phase equilibrium, Phase diagram analysis, Phase law, Lever rule, Teaching strategy