The combination of these equations leads to [26]−ΔGDA0=FΔE1/2D/A−RTlnKDA where, (ΔE1/2D/A = (E1/2A + E1/2D) and F is Faraday's constant). Substitution of eqn [26] into eqn [9] and assuming that the net entropy contributions are small leads to eqn [27]. [27]hν...