Apparent molar volumes and heat capacities of aqueous lithium chloride, rubidium chloride, and cesium chloride at temperatures from (278.15 to 393.15) K at the pressure 0.35 MPa

Abstract

Apparent molar volumes V φ and apparent molar heat capacities C p, φ were determined for aqueous solutions of lithium chloride, rubidium chloride, and cesium chloride at molalities m=(0.02 to 1.0) mol · kg −1, and at the pressure p=0.35 MPa. Density measurements obtained with a vibrating-tube densimeter at temperatures T=(278.15 to 368.15) K were used to calculate V φ values, and heat capacity measurements obtained with a twin fixed-cell, differential-output, power-compensation, temperature-scanning calorimeter at temperatures T=(278.15 to 393.15) K were used to calculate C p, φ values. Our results were fitted to functions of m and T.