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The heat of formation of water is given ...

The heat of formation of water is given by :

A

`H_(2(g)) + (1)/(2) O_(2 (g)) to H_(2) O(l) , Delta H = -68.3 ` kcal

B

`2H_(2 (g)) + O_(2 (g)) to 2 H_(2) O _((l)) , Delta H = -136.6 ` kcal

C

`H_(2 (g)) + (1)/(2) O_(2 (g)) to H_(2) O _((g)) , Delta H = -86` kcal

D

`H_(2 (g)) + (1)/(2) O_(2 (g)) to H_(2) O_((l)) , Delta H = + 68.3 ` kcal

Text Solution

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The correct Answer is:
A
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