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The heats of combustion of hydrogen and ...

The heats of combustion of hydrogen and cyclohexene are `-241 kJ mol^(-1)` and `-3800 kJ mol^(-1)`.The heat of hydrogenation of cyclohexene is `-121kJ mol^(-1)`. Calculate the heat of combustion of cyclohexane. 

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The correct Answer is:
3920 KJ
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