Heat of formation of the surface and the Gibbs-Helmholtz equation

摘要

The expression for the heat of formation of the surface of the ideally polarized electrode in the form Q~(surf) = (Γ_S - Σ_iS_iΣ_i)T derived by author, is in close agreement with the Gibbs-Helmholtz equation for the isothermal temperature coefficient of the emf of the electrochemical cell. In the expression above, Σ_S is the surface excess of the particles of the sort, i, S_i is the transported entropy of the particles of the sort i, instead of the partial entropy of those particles S_i, T is the absolute temperature, the summation is carried out over all particles present in the surface layer.