Heat capacity and thermodynamic properties of a-beryllium nitride, Be3N2, from 20 to 315 K

The heat capacity of a-bervllium nitride_ Be"N2 , was determined from 20 to 315 K and the thermodynamic properties calculated from 0 to 315 K. The entropy at 298.15 K was found to be 34.4 0.3 ]IK-mol (8_23 0.08 caI/K-mol)~ The precision using a calorimeter of a new design is shown to be 0.01 percent over most of the temperature range of the measurements.