I.M. Abdulagatov, J.W. Magee, S.B. Kiselev, and D.G. Friend
All available sources of data for the isochoric heat capacity of H2O and D2O have been collected, evaluated, corrected, and converted to the ITS-90 temperature scale. The data extend over a temperature range from 286.69 K to 1073.95K and over a density range between 20 kgm-3 and 999.001 kgm-3. The final collection includes new data for both H2O and D2O in the liquid and vapor phases, on the coexistence curve, and in both the near- and supercritical regions. Results of a critical analysis of the uncertainty of each data source and comparisons with other sources in the same range of temperature and density are presented. All of the experimental data are compared with the Pruss and Wagner fundamental equation of state (PW FEOS) and crossover equation of state (CREOS). Special interest has been focused on the description of Cv behavior on the vapor-liquid coexistence curve, and in the sub-critical and supercritical regions. The reliability and consistency of the each data set have been studied.
To be published in Proceedings of the 13th International Conference on the Properties of Water and Steam