Q.

Hydration energies of Li+ and Cl− are -499 and -382 k.J mole−1. If lattice energy of LiCl is   +840 k.J mole−1, heat of solution of LiCl is

Na

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By Expert Faculty of Sri Chaitanya

a

+41 kJ mole−1

b

-12.22 kJ mole-1

c

– 1621 kJ mole−1

d

– 41 kJ mole−1

answer is 4.

(Detailed Solution Below)

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Detailed Solution

ΔHLiClSol=ΔHLiClHydration+Latticeenergy=−499+(−382)+840=−41kJ/mol
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