Thermodynamic Properties of Liquid Helium Three. I. The Specific Heat and Entropy

Abstract

Specific heats of saturated liquid ${\mathrm{He}}^3$ have been measured between 0.37° and 2.36°K. The data fit the empirical equation, $C=0.577+0.388T+0.0613\mathrm{}{T}^3$ (cal/mole deg), to about ±1.0 percent between 0.5° and 1.7°K. The standard deviations of most of the individual points are between 1 and 2 percent.