(1) For the given heat of reaction, (i...

(1) For the given heat of reaction,
(i) `C(s)+O_(2)(g)=CO_(2)(g)+97 kcal`
(ii) `CO_(2)(g)+C(s)=2CO(g)-39 kcal`
the heat of combustion of `CO(g)` is:

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The correct Answer is:

69 kcal

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