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The enthalpy of combustion of H(2) , cyc...

The enthalpy of combustion of `H_(2)` , cyclohexene `(C_(6)H_(10))` and cyclohexane `(C_(6)H_(12))` are `-241` , `-3800` and `-3920KJ` per mol respectively. Heat of hydrogenation of cyclohexene is

A

`-121 "KJ mol"^(-1)`

B

`121 "KJ mol"^(-1)`

C

`-242 "KJ mol"^(-1)`

D

`242 "KJ mol^(-1)`

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A
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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:

Enthalpy of combustion of CH_(4) , C_(2)H_(6) and C_(3)H_(8) are -210-370 and -530Kcal//mol respectivaly. The approximate value of enthalpy of combustion of n -hexane is

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