A Kinetic and Thermodynamic Interpretation of Gibbs Free Energy and Electrode Potential
Aug 2025 · Manjunath.R
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Ebook
130
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About this ebook
The provided document explores the interplay between thermodynamics and kinetics in chemical and electrochemical reactions. It asserts that Gibbs free energy changes in a reversible reaction are tied to the relative rates of the forward and backward reactions: a spontaneous reaction favors a higher forward rate, while a non-spontaneous reaction favors a higher backward rate. The document extends this principle to electrochemical systems, where electrode potential is not only a function of thermodynamic properties like enthalpy and entropy but is also influenced by kinetic factors like reaction rates, thermal effects, and temperature. It proposes a generalized equation that integrates these kinetic contributions with traditional thermodynamic relationships, thereby expanding on the Nernst equation. Case studies on various metals demonstrate that ion concentration impacts both the electrode potential and the balance between reduction and oxidation rates. The document concludes by expressing the actual change in entropy in terms of temperature effects and its relationship to the actual and standard enthalpy changes, incorporating kinetic factors to provide a more comprehensive understanding of electrode behavior.
Ratings and reviews
5.0
4 reviews
Lijith V K
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August 31, 2025
nice sir,, very good
Bala Subramanya
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August 31, 2025
very good
About the author
Manjunath.R is a software engineer, author, and passionate science communicator from India. He is deeply inspired by the works of great philosophers, physicists, and astronomers, and is driven by a desire to explore life’s most profound questions: Why are we here? Where did we come from? Why does the universe exist at all? Through his writing and blogging, he strives to make complex scientific ideas accessible and engaging for all. His ultimate goal is to achieve and share a deeper understanding of the universe and the fundamental laws that govern it.
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