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Standard enthalpy of vaporisation Delta(...

Standard enthalpy of vaporisation `Delta_("vap")H^(@)` for water at `100^(@)`C is `40.66 KJ "mol"^(-1)` . The internal energy of vaporisation of water at `100^(@)C` (in KJ `"mol"^(-1)`) is (assume water vapour to behave like an ideal gas).

A

`+ 43.76`

B

`+40.66`

C

`+ 37.56`

D

`-43.76`

Text Solution

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The correct Answer is:
C
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