Question

Standard heat of formation of KCl is -78.31 kcal mol-1. Calculate its lattice energy in kcal/mol from following informations:IE (K) = 99.17 kcal / mol EA (CI) = 73.4 kcal/mol Bond dissociation energy of Cl2 is 36 kcal/mol, sublimation energy of K is 21.51 kcal mol.

Answer 1

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