Abstract: | Determination of the Enthalpy of Formation of SmOCl by Solution Calorimetry The enthalpy of formation of SmOCl (ΔH(SmOClf, 298) = —239.9 ± 0.5 kcal/mol) was determined from the heat of solution of SmOCl (ΔHL(SmOClf298) = —31.24 ± 0.15 kcal/mol) on the base of the enthalpies of formation of Sm2O3 and SmCl3 and their heats of solution in 4n HCl. |