The lattice energy of KBr is 671.0 kJ/mol and its heat of solution is 19.9 kJ/mol. Calculate the hydration of energy of KBr (s).

We are given with

Lattice energy = 671.0 kJ/mol

Heat of solution = 19.9 kJ/mol

Heat of hydration = lattice energy + heat of solution

Heat of hydration = 671.0 kJ/mol + 19.9 kJ/mol

Heat of hydration = 690.9 kJ/mol