High-temperature heat capacity of CdO–V$_{2}$O$_{5}$ oxides

Vanadates Cd$_{2}$V$_{2}$O$_{7}$ and CdV$_{2}$O$_{6}$ have been prepared from CdO and V$_{2}$O$_{5}$ by three-phase synthesis with subsequent burning at 823–1073 K and 823–853 K, respectively. The molar heat capacity of these oxide compounds has been measured by differential scanning calorimetry. The enthalpy change, the entropy change, and the reduced Gibbs energy are calculated using the experimental dependences $C_{p}=f(T)$. It is shown that there is a correlation between the specific heat capacity and the composition of CdO–V$_{2}$O$_{5}$ oxide system.