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

The enthalpy of combustion of `H_(2),` cyclohexene `(C_(6)H_(10))` and cyclohexane `(C_(6)H_(12))` are -241, -3800 and -3920 KJ 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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The correct Answer is:
A
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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

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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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ALLEN-THERMODYNAMICS -EXERCISE -3
  1. Heat of neutralisation of oxalic acid is -106.7 KJ mol^(-1) using NaOH...

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  2. The heat of combustion of C2H4 C2H6 and H2 are- 1409.5 kJ,- 1558.3kJ a...

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  3. The enthalpy of combustion of H(2), cyclohexene (C(6)H(10)) and cycloh...

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  4. Bond energy of a molecule :

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  5. Among the following for which reaction heat of reaction represents bon...

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  6. The bond energies of F2 Cl2, Br2 and I2 are 155.4, 243.6, 193.2 and 15...

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  7. Energy required to dissociate 4 g of gaseous hydrogen into free gaseou...

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  8. Heat evolved in the reaction H(2)[g]+Cl(2)[g] rarr 2HCl[g] is 182 kJ...

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  9. The enthalpy change for the reaction H(2)(g)+C(2)H(4)(g)rarr C(2)H(6)(...

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  10. Bond dissociation enthalpies of H(2)(g) and N(2)(g) are 436.0 kJ mol^(...

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  11. Consider the reactions : C((s))+2H(2(g)) rarr CH(4(g)), DeltaH=-X kc...

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  12. The enthalpy changes at 298K in successive breaking of O-H bonds of ...

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  13. If values of Delta(f)H^(Theta) of ICI(g),CI(g), and I(g) are, respecti...

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  14. The heat of dissociation of benzene in isolated gaseous atoms is 5335 ...

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  15. The enthalpy change for the reaction 2C("graphite")+3H(2)(g)rarrC(2)H(...

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  16. Cl(2)(g)rarr2Cl(g), In this process value of Delta H will be -

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  17. The magnitude of heat of solution ….. On addition of solvent to soluti...

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  18. If H(2)(g) rarr 2H(g) " "DeltaH = 104 kcals Then heat of atomizat...

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  19. The heat of combustion of yellow phoshphorus and red phosphorus are -9...

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  20. For the change,C("diamond") rarr C("graphite"), Delta H = -1.89 kJ , i...

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