EVALUATION OF TRANSFER FREE-ENERGIES

We obtain an expression for the chemical potential which shows the eff ect that a molecule, when it is introduced into a solution, produces o ver the entire system. It has been discussed whether a term kT(r(beta) - r(alpha)), which accounts for the differences among the molar volum es of the components, should be used-to calculate the transfer free en ergies between two phases alpha and beta. We show that both quantities ,with and without kT(r(beta) - r(alpha)), give relevant information ab out the solution process.