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The ionisation energy of solid NaCl is 1...

The ionisation energy of solid NaCl is 180 kcal, per mol. The dissolution of the solid in water in the from of ions is endothermic to the extent of 1 kcal per mol, If the solvation energies of `Na^+` and `Cl^-` ions are in the rstio 6:5, what is the enthalpy of hydration of sodium ion:

A

`-85.6 kcal/mol`

B

`-97.5 kcal/mol`

C

`82.6 kcal/mol`

D

`+100 kcal/mol`

Text Solution

Verified by Experts

The correct Answer is:
B
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