The standard entropy of transport of potassium chloride in the water–methanol system at 298 K

Abstract

Standard entropies of transport, S_KCl^*0, and transported entropies of the chloride ion, S^_Cl-0, in H₂O–CH₃OH mixtures at 298 K have been determined from the measurements of initial and steady-state (final) thermoelectric powers of the silver/silver chloride thermocell in the 0.002–0.040 mol kg^-1 concentration range. The variations of S_KCl^*0 and S^_Cl-0 with the composition of the solvent system are discussed in terms of ion–solvent interaction and ion transport across a temperature gradient.