Helmholtz free energy, diffusive

Concentration Diameter of a gel cylinder Diffusion coeffieient Cooperative diffusion eoeffieient Helmholtz free energy Gibbs free energy Storage modulus Loss modulus... [Pg.103]

For one-electron transfer reactions occurring via outer-sphere mechanisms, wp and ws can be estimated on the basis of electrostatic double-layer models. Thus, if the reaction site lies at the outer Helmholtz plane (o.H.p.), wp = ZFd and ws = (Z - 1 )Fcharge number of the oxidized species and (j>d is the potential across the diffuse layer. Rewriting eqn. (7) in terms of rate constants rather than free energies yields the familiar Frumkin equation [8]... [Pg.6]