Thermodynamic Measurements

Abstract

Thermodynamic properties of solutions are not only useful for estimating the feasibility of reactions in solution, but they also offer one of the better methods of investigating the theoretical aspects of solution structure. This is particularly true for the standard partial molal entropy, heat capacity, and volume of the solutes, values of which are sensitive to the arrangement of solvent molecules around a solute molecule. They have been examined extensively B1–4 in aqueous solution for the purpose of structure interpretation and more recently in non-aqueous solutions.B5–8 Enthalpies and free energies of solvation and transfer between solvents have also been valuable in the testing of theoretical relationships such as the Born equation B9 and modifications of the Born equation,Bl0 as well as predicting solvation effects in reaction kinetics.B11,B12