Enthalpy and Heat Capacity of Liquid Rubidium within the Temperature Range of 480–1000 K

Abstract

Liquid rubidium enthalpy increment was measured by drop method within the temperature range of 480–1000 K. The approximation equation was obtained and the isobaric heat capacity was determined. The estimated errors of the data on the enthalpy and the heat capacity were equal to 0.5% and 1.5%, respectively. The results obtained were compared with the available literature data. The position (723 K) of the minimum of the liquid rubidium heat capacity was refined. The tables of the recommended values of the caloric properties within the studied temperature range were developed.