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Examveda

Entropy change of the reaction, H2O(liquid) ⇒ H2O(gas), is termed as the enthalpy of

A. Solution

B. Vaporisation

C. Formation

D. Formation

Answer: Option B

Solution(By Examveda Team)

$$A.$$ solid ⟹ liquid → melting
$$B.$$ liquid ⟹ vapor → vaporization
$$C.$$ solid ⟹ vapor → sublimation
So, enthalpy change for the reaction $${H_2}O\left( {liq} \right) \Rightarrow {H_2}O\left( {gas} \right)$$     is enthalpy change of vaporization.
In the question entropy should be replaced by enthalpy.

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