Consider The Following Generic Simple Half Cell Reaction At The Anode Of A Fuel Cell 2612629

Consider the following generic, simple half-cell reaction at the anode of a fuel cell:

Anode: R ? P

Then the Butler–Volmer equation for this reaction is

(a) If the concentrations of the reactant ( ) and product () species at zero current density (or equilibrium) are not equal to the reference concentrations ( and ), find the activation overvoltage of the anode at equilibrium.