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ChemistryThermochemistryEnthalpy of solution/dilution/hydrationMedium2 minQB
ChemistryMediumsingle choice

The enthalpy of solution of and are and respectively. The enthalpy change for the following reaction is:

Options:

Answer:
D
Solution:

BaCl₂(s) + aq. Ba²⁺(aq) + 2Cl⁻(aq) ; …(1)

BaCl₂·2H₂O(s) + aq. Ba²⁺(aq) + 2Cl⁻(aq) + 2H₂O ; …(2)

Subtracting (2) from (1):

BaCl₂(s) + 2H₂O BaCl₂·2H₂O ;

.

Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of solution/dilution/hydration
2mℹ️ Source: QB

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