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Lattice dissociation energy and hydratio...

Lattice dissociation energy and hydration energy of sodium chloride are respectively `788 kJ mol^(-1)` and `784 kJ mol^(-1)`. Then enthalpy of solution of sodium chloride in water is 

A

`+4 kJ mol^(-1)`

B

`+1572 kJ mol^(-1)`

C

`4 kJ mol^(-1)`

D

`-1572 kJ mol^(-1)`

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The correct Answer is:
A
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