University Chemistry ›› 2023, Vol. 38 ›› Issue (8): 293-298.doi: 10.3866/PKU.DXHX202209021

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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

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