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Heat of combustion DeltaH^(@) for C(s),H...

Heat of combustion `DeltaH^(@)` for `C(s),H_(2)(g)` and `CH_(4)(g)` are `94, -68` and `-213Kcal//mol` . Then `DeltaH^(@)` for `C(s)+2H_(2)(g)rarrDeltaCH_(4)(g)` is

A

`– 17 Kcal`

B

`– 111 Kcal`

C

`– 170 Kcal`

D

`– 85 Kcal`

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The correct Answer is:
A
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