Chemistry-Enthalpy
NEET Chemistry Enthalpy MCQ Question
Type: MCQ-diagram based-Hard-Class 11
Consider a diagram showing the dissolution process of an ionic compound in water at a constant temperature. The diagram includes arrows indicating the steps: lattice enthalpy and enthalpy of hydration. Which label correctly represents the enthalpy of solution in the diagram?
A
The net energy change when lattice enthalpy is added to enthalpy of hydration.
B
The energy required to break all ionic bonds in the lattice.
C
The energy released when water molecules surround the ions.
D
The energy change associated with increasing the temperature of the solution.
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, the enthalpy of solution (∆solH°) is the sum of the lattice enthalpy (∆latticeH°) and the enthalpy of hydration (∆hydH°).
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