1.

Heat of formation of CO_(2)(g), H_(2)O(l) and CH_(4)(g) are - 94.0, - 68.4 and -17.9 kcal respectively. The heat of combustion of methane is

Answer»

`- 212.9` kcal
`- 136.8` kcal
`- 304.3` kcal
`- 105.2` kcal

Solution :Find`DeltaH" for "CH_(4(g))+2O_(2(g))rarrCO_(2(g))+2H_(2)O_((L))`


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