NERNST EQUATION

"An equation defining the equilibrium potential of an electrode. The potential is the sum of the standard electrode potential and a correction term for the deviation from unit concentrations of the reactant and the product of the electrode reaction in the solution; if the ""reduced"" form is a metal, a pure metal (not alloyed with other metals) is considered to be at unit concentration. E = E o + S * LOG Cox/Cred The correction term is the product of the ""Nernst slope"" and the logarithm of the ratio of the concentrations (strictly speaking, activities) of the oxidized species and the reduced species. At room temperature, the Nernst slope is 0.05916 volt divided by the number of electrons transferred during the reaction. E.g., for a simple metal deposition/dissolution reaction the slope is 0.05916 for a single charged metal cation, 0.00296 volt for a double charged ion, etc. "