A) (Lattice energy) \[=\Delta {{H}_{solvation}}\] (Solvation energy)
B) \[U<\Delta {{H}_{solvation}}\]
C) \[U>\Delta {{H}_{solvation}}\]
D) both lattice energy and solvation energy is not concerned for spontaneity
Correct Answer: B
Solution :
For spontaneous dissolution, dissolution should be exothermic. That's why the amount of energy released in solvation, \[\text{ }\!\!\Delta\!\!\text{ }{{\text{H}}_{\text{solvation}}}\] must be higher than the energy, which is required to break down ionic crystals, into respective ions.
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