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

    2. A.

     Solution
    B.

     Vaporisation
    C.

     Formation
    D.

     Formation

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    Workspace

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    Answer : Option B

    Explanation :

    A- solid ⟹ liquid → melting
    B- liquid ⟹ vapor → vaporization
    C- solid ⟹ vapor → sublimation
    So, enthalpy change for the reaction H2O(liq)⇒H2O(gas)     is enthalpy change of vaporization.
    In the question entropy should be replaced by enthalpy.

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