Thermal energy of ionic solids

▶ In the present paper, we present a method to predict the temperature dependence of thermal energy from room temperature to their melting temperatures at atmospheric pressure i.e., P = 1 bar or 105 Pa. ▶ We find that the calculated results of thermal energy are in good agreement with the experimental data. ▶ We employ the present relationship to NaCl and KCl to validate the present model.▶ Present study also reveals that the temperature dependence of thermal energy shows linearity with isothermal bulk modulus.▶ PA close agreement between results and experimental data discloses the validity of present work.