Non-equilibrium electrode potentials

In Chapter 5 we considered reversible potentials adopted by a metal electrode M, when placed in a solution of ions M . The steady potential resulted from the rapid establishment of the equilibrium 

Ideal current-potential relationship for the system M = almost instantaneously. 

Current-potential relationship for a slow or irreversible system, requiring an overvoltage r Q for the process M + e = M and for M M + e. In such cases the equilibrium condition M + e is not 

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Standard emf standard equilibrium electrode potential equilibrium electrode rest potential Non-equilibrium electrode potential... 

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