Question

The heat of formation of crystalline sodium chloride is -410 kJ mol-1. The

heat of sublimation of sodium metal is 180.8 kJmol-1. The heat of

dissociation of chlorine gas into atoms is 242.7 kJ mol-1. The ionisation

energy of Na and electron affinity of Cl are 493.7kJ and -368.2 kJ

respectively. Calculate the lattice energy of NaCl.​

Answer 1

Answer:

1) The heat of formation of crystalline sodium chloride is -410 kJ mol-1. The heat of sublimation ...