Thermodynamic properties of ZnTe in the temperature range 15-925 K

Abstract

The heat capacity of ZnTe was measured in an adiabatic calorimeter in the temperature range from 15 to 330K and by DSC at T = 290-925 K. The following standard thermodynamic properties of ZnTe were derived: CP0 (298.15 K) = (49.52 ± 0.10) JK-1 mol-1; S0(298.15 K) = (81.94 ± 0.17) J K-1 mol-1; H0(298.15 K) - H0(0 K) = (10.98 ± 0.02) kJ mol-1; Φ0(298.15 K) = (45.12 ± 0.10) J K-1 mol-1. Temperature dependences of the heat capacity and the Gibbs free energy function are derived for the temperature range up to 1500 K. The Debye temperature calculated from the specific heat data is θD = 252 K.