The enthalpy of solution of sodium chloride is 4kJmol−1 and its enthalpy of hydration of ions is −784kJmol−1 Then the lattice enthalpy of NaCl (in kJmol−1 ) , is

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answer is A.

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Detailed Solution

ΔHsol =ΔHLathee +ΔHhyy distion

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