The Debye temperature of alumina

The Debye temperature of alumina ( Al2O3 density 3970 kg/m^-3 molecular weight 102 ) is approximately 600°C.Estimate the specific heat of alumina at (a) 700 C and (b) 25 C.i) per mole ii) per unit mass andiii) per unit volumeObtain a value for the specific heat of alumina at room temperature from a published source (paper data book software etc.) per unit mass. Provide a complete reference for your answer.