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Question

Given the following thermodynamic data, calculate the lattice energy of KCl: ΔH°f[KCl(s)] = -437 kJ/mol ΔH°sublimation [K] = 89 kJ/mol Bond energy [Cl-Cl] = 243 kJ/mol IE1 (K) = 419 kJ/mol EA1 (Cl) = -349 kJ/mol