大学化学 >> 2023, Vol. 38 >> Issue (8): 293-298.doi: 10.3866/PKU.DXHX202209021

师生笔谈 上一篇    下一篇

关于Nernst方程的几点讨论

郭慧林(), 程永亮, 蒋海英   

  • 收稿日期:2022-09-06 录用日期:2022-11-03 发布日期:2022-11-24
  • 通讯作者: 郭慧林 E-mail:hlguo@nwu.edu.cn
  • 基金资助:
    教育部高等学校化学类专业教学指导委员会教学研究与实践项目(H20210602);教育部高等学校化学类专业教学指导委员会教学研究与实践项目(H20210603);2019年陕西省线下一流本科课程建设项目(物理化学);西北大学2021年度本科人才培养建设项目(XM05211650);西北大学2021年度本科人才培养建设项目(XM05211657)

Discussions on the Nernst Equation

Huilin Guo(), Yongliang Cheng, Haiying Jiang   

  • Received:2022-09-06 Accepted:2022-11-03 Published:2022-11-24
  • Contact: Huilin Guo E-mail:hlguo@nwu.edu.cn

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摘要：

Nernst方程是可逆电池热力学的基础，是电化学中最重要公式的之一。然而，目前物理化学教材中关于Nernst方程的内容较为简单，仅强调其适用于可逆状态，而未对使用条件作深入讨论，学生在使用时易产生错误。本文从Nernst方程的提出与发展、推导方法、使用条件、应用及其背后的科学遗产等方面展开讨论。本论文可为相关教学提供一定参考。

关键词: Nernst方程, 使用条件, 公式推导, 电化学势, 科学遗产

Abstract:

The Nernst equation is the foundation of reversible cell thermodynamics and is an essential formula in electrochemistry. However, physical chemistry textbooks discuss the Nernst equationrelatively briefly and only emphasizeits applicabilityto reversible state without in-depth discussion. Students are often confused when using the equation due to the unclear restrictions in its use. Several aspects of the Nernst equation are presented in this study. The origin and development of the Nernst equation, derivation methods, restrictionsin its use, applications, and scientific heritage behind the Nernst equation are discussed. This may provide a reference for both peer and student learning.

Key words: Nernst equation, Use restrictions, Equation derivation, Electrochemical potential, Scientific heritage