Heat Capacities And Standard Entropies And Enthalpies Of Some Compounds Essential For Steelmaking And Refractory Design Approximated By Debye-Einstein Integrals

Heat capacity data for compounds located in the binary CaO-SiO2, CaO-Al2O3 and MgO-Al2O3 systems are fitted by Debye-Einstein integrals. Starting from the fitted heat capacities, the standard values of the thermodynamic functions of these compounds are calculated. In almost all cases investigated, the derived standard entropies are within the uncertainties of the values provided in literature. The Debye-Einstein coefficients obtained in this thermodynamic assessment can be used to approximate the heat capacities, enthalpies and entropies of these compounds in the temperature range from 0 to 298.15 K.