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JEE Main Chemistry question

ChemistryThermodynamicsJEE Main

The ionization energy of solid is 180 kcal per mole. The dissolution of the solid in water in the form of ions is endothermic to the extent of 1 kcal per mol. If the solvation energies of and ions are in the ratio 6:5, what is the enthalpy of hydration of sodium ion?

Answer: (B)

Solution

H_{dissolution}H_{lattice}H_{hydration(total)}H_{hyd}$ ⇒

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Question ID VK-135273