大学化学 >> 2025, Vol. 40 >> Issue (8): 323-329.doi: 10.12461/PKU.DXHX202409146

所属专题： 物理化学课程和实验教学

师生笔谈 上一篇    下一篇

化学热力学熵变计算的教学探讨

荣春光, 许苗军, 向兴德, 刘松   

  1. 东北林业大学化学化工与资源利用学院, 哈尔滨 150040
  • 收稿日期:2024-09-30 录用日期:2025-01-02 发布日期:2025-07-19
  • 通讯作者: 荣春光, 刘松 E-mail:rongcg@nefu.edu.cn;liusongcid@163.com
  • 基金资助:
    2019年黑龙江省高等教育教学改革项目(SJGY20190021)；2020年黑龙江省高等教育教学改革项目(SJGY20200035)

Exploring the Teaching of Entropy Change Calculations in Chemical Thermodynamics

Chunguang Rong, Miaojun Xu, Xingde Xiang, Song Liu   

  1. College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
  • Received:2024-09-30 Accepted:2025-01-02 Published:2025-07-19
  • Contact: Chunguang Rong, Song Liu E-mail:rongcg@nefu.edu.cn;liusongcid@163.com

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摘要： 熵是物理化学中一个重要的函数，熵变的计算涉及到过程方向的最基本判据。在熵变计算的授课中，采用多种方法对熵变的计算公式进行推导，可以提高教学质量，达到更好的教学效果。同时本文也介绍了化学工程中真实气体熵变的计算，拓展了学生的知识面，为学生展示了物理化学与实际化学工程问题的紧密联系。

关键词: 物理化学, 熵变, 理想气体, 真实气体

Abstract: Entropy is a fundamental function in physical chemistry, and the calculation of entropy change serves as a basic criterion for determining the direction of processes. This paper discusses various methods for deriving the entropy change calculation formula in teaching, which can enhance instructional quality and improve learning outcomes. Additionally, the paper introduces the calculation of entropy change for real gases in chemical engineering, thereby broadening students’ knowledge and illustrating the close connection between physical chemistry and practical issues in chemical engineering.

Key words: Physical chemistry, Entropy change, Ideal gas, Real gas