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H(2)(g)+1//2O(2)(g)=H(2)O(l) , Delta H(2...

`H_(2)(g)+1//2O_(2)(g)=H_(2)O(l) , Delta H_(298 K)=-68.32` Kcal. Heat of vapourisation of water at 1 atm and `25^(@)C` is 10.52 Kcal. The standard heat of formation (in Kcal) of 1 mole of water vapour at `25^(@)C` is

A

`-78.84`

B

78.84

C

`+57.80`

D

`-57.80`

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The correct Answer is:
D
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TARGET PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS -EVALUATION TEST
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  12. For an endothermic reaction, where Delta H represents the enthalpy of ...

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  16. Which of the following does NOT result in increase in the entropy?

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