大学化学 >> 2023, Vol. 38 >> Issue (6): 164-170.doi: 10.3866/PKU.DXHX202210034

所属专题: 化学类教材建设

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物理化学教材中各类化学反应等温式的完整导出和介绍

侯文华()   

  • 收稿日期:2022-10-12 录用日期:2022-11-11 发布日期:2023-01-03
  • 通讯作者: 侯文华 E-mail:whou@nju.edu.cn

A Complete Derivation and Introduction of Various Types of Chemical Reaction Isotherms in Physical Chemistry Textbooks

Wenhua Hou()   

  • Received:2022-10-12 Accepted:2022-11-11 Published:2023-01-03
  • Contact: Wenhua Hou E-mail:whou@nju.edu.cn

摘要:

本文介绍在物理化学教材中,以化学势为主线,籍此系统而又完整地导出各类化学反应的等温式。一方面可进一步巩固和强化学生对各类物质化学势及其表达式的理解和应用,另一方面还可以非常直接地明晰各类化学反应等温式的来龙去脉,并帮助学生正确理解和计算各类化学反应标准摩尔Gibbs自由能ΔrGmϴ、标准平衡常数(又称热力学平衡常数) Kϴ和反应商Q,从而有助于取得较好的教学效果。

关键词: 化学反应等温式, 推导, 化学势, 物理化学教材

Abstract:

Taking chemical potential as the main line, this paper mainly introduces the derivation of various types of chemical reaction isotherms both systematically and completely in physical chemistry textbooks. By doing so, it can further consolidate and strengthen the students' understanding and application of the chemical potentials of different kinds of substances. On the other hand, it can also make clear the origin of various types of chemical reaction isotherms rather directly and be helpful to the students for their correct understanding and calculation of standard molar Gibbs free energy change ΔrGmϴ, standard equilibrium constant Kϴ (also named thermodynamic equilibrium constant) and reaction quotient Q of various types of chemical reactions. Hence, a rather good teaching effectiveness can be achieved hopefully.

Key words: Chemical reaction isotherm, Derivation, Chemical potential, Physical chemistry textbooks