Use the Born-Haber cycle and given data ΔH∘f(KCl)=−436.5kJ/mol, IE1(K)=419kJ/mol, sublimation energy ΔHsub(K)=89.0kJ/mol, the bond energy of Cl2(g) is 243 kJ/mol, EA(Cl)=−349kJ/mol to calculate the lattice energy of KCl.
Express the lattice energy with the appropriate units.
