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Heat of combustion of methane and ethane are -291.7 Kcal & — 441.2 Kcal respectively:

A. Methane is a better fuel because ethane is poisonous

B. Methane is a better fuel than C2H6

C. Ethane is a better fuel than CH4

D. Both are equally efficient as a fuel

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  18. Heat of combustion of methane and ethane are -291.7 Kcal & — 441.2 Kcal respectively:
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  24. Heat of reaction
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  28. 1 Joule is equal to