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The reaction which shows standard heat o...

The reaction which shows standard heat of formation of water correctly is 

A

`H_(2(g)) + 1/2 O_(2(g)) rarr H_2O_((l)) , DeltaH = -68.3 kcal`

B

`H_(2(g)) + 1/2O_(2(g)) rarr H_2O_((s)) , DeltaH = -68.3 kcal`

C

`H_(2(g)) + 1/2O_(2(g)) rarr H_2O_((g)) , DeltaH = -68.3 kcal`

D

`2H_(2(g)) + 1/2O_(2(g)) rarr 2H_2O_((l)) , DeltaH = -136.6 kcal`

Text Solution

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The correct Answer is:
A
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