Abstract
This is the first chapter in the book where the evaluation of electrochemical systems, in particular cell voltage, considers the concentration of reactants differently from what is defined as a reference point or standard conditions (i.e., unit concentration or pressure, room temperature). The calculations of cell voltage under any conditions are done using the Nernst equation, originally derived by Walter Nernst to deliver a correction of the standard cell voltage under nonstandard conditions of concentration and temperature. The equation contains the reaction quotient, which is the ratio of the concentrations of products divided by those of reactants, taking into account the stoichiometric coefficients of the reaction.
The application of the Nernst equation is evaluated using some practical examples, including the most common system with water-based electrolyte.
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Petrovic, S. (2021). Effect of Concentration. In: Electrochemistry Crash Course for Engineers. Springer, Cham. https://doi.org/10.1007/978-3-030-61562-8_4
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DOI: https://doi.org/10.1007/978-3-030-61562-8_4
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Publisher Name: Springer, Cham
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