Redox Reactions and Electrochemical Cells

Chapter

Abstract

Some electrochemical cells permit a half-redox reaction to occur separately but obligatorily simultaneously with another half-redox reaction. This is not possible with redox reactions taking place within a solution. In this case, it is impossible to separate the two half-reactions into which the global reaction can be decomposed. This possibility, which comes from using electrochemical cells, permits us to quantify the oxidizing strength of redox couples through the concept of standard potentials. This is achieved with the help of Nernst’s equation. Thus, predicting the direction of redox reactions and their extent is possible on the basis of thermodynamics.

Keywords

Zinc Hydrated Convection Enthalpy Platinum 

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  1. 1.Fac. PharmacieUniversité Rennes IRennesFrance

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