The standard ethelpy of combustion at 25...

The standard ethelpy of combustion at `25^(@)C` of hydrogen, cyclohexene `(C_(6)H_(10))`, and cyclohexane `(C_(6)H_(12))` are `-241,-3800`, and `-3920 kJ mol^(-1)` repectively. Calculate the heat of hydrogenation of cyclohexane.

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The standard enthalpy of combustion at 25^(@)C of hydrogen, cyclohexene (C_(6)H_(10)) , and cyclohexane (C_(6)H_(12)) are -241,-3800 , and -3920 kJ mol^(-1) repectively. Calculate the heat of hydrogenation of cyclohexene.

The enthalpy of combustion at 25^(@)C of H_(2)(g) , cyclohexane and cyclohexene are -241, 3920 and -3717 kJ "mole"^(-1) respectively. The heat of hydrogenation of cyclohexene is ( Kcal/mole) approximate integer:

The heats of combustion of C_(2)H_(4(g)), C_(2)H_(6(g)) and H_(2(g)) are -1405,-1558.3 and -285.6 kJ respectively. Calculate heat of hydrogenation of ethylene.

DeltaH combustion for CH_(4),C_(2)H_(6) , and C_(3)H_(8) are -210.8,-368.4 and -526.3 kcal mol^(-1) , respectively. Calculate DeltaH combustion for octane.

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