Home
Class 12
CHEMISTRY
DeltaE^(@) of combustion of isobutylene ...

`DeltaE^(@)` of combustion of isobutylene is `-X kJ mol^(-1)`. The value of `DeltaH^(@)` is

A

`= DeltaE^(@)`

B

`gt DeltaE^(@)`

C

`=0`

D

`lt DeltaE^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D

`(CH_(3))_(2)C=CH_(2)(g)+6O_(2)(g)to4CO_(2)(g)+4H_(2)O(l)`
`Deltan_(g)=4-7=-ve`
Hence `DeltaH^(@) lt DeltaE^(@)`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Additional Numerical Problems For Practice|16 Videos
  • CHEMISTRY IN EVERY DAY LIFE

    DINESH PUBLICATION|Exercise Unit test-9|50 Videos

Similar Questions

Explore conceptually related problems

DeltaU^(-) of combustion of methane is -x kJ mol^(-1) . The value of DeltaH^(-) is:

DeltaU^(Θ) of combustion of methane is -XkJ mol^(-1) . The value of DeltaH^(Θ) is

DeltaU^(@) of combustion of CH_(4(g)) at certain temperature is -"393 kJ mol"^(-1) . The value of DeltaH^(@) is

(p) Cis-2- butene to trans -2-butene, DeltaH_(1) (Q)Cis-2-butene to 1-buture, DeltaH_(2) (R ) Trans -2-buture is more stable than cis-2-buture (S ) Enthalpy of combustion of 1-buture, DeltaH=-649.8kcal//mol (T) 9DeltaH_(1)+5DeltaH_(2)=0 (U) Enthalpy of combustion of trans -2- buture, DeltaH=-647.0kcal//mol The value of Delta H_(1) and DeltaH_(2) in kcal/mole are:

If the heat of combustion of pentane is 3507 kJ mol^(-1) then its calorific value will be ?

Enthalpy of formation of 2mol of NH_(3)(g) is -90KJ , and DeltaH_(H-H) and DeltaH_(N-H) respectively 435KJ mol^(-1) and 390KJ mol^(-1) . The valule of DeltaH_(N-=N) is

Enthalpy of formation of NH_(3) is -X kJ and Delta H_(H-H) , Delta H_(N-H) are respectively Y kJ mol^(-1) and Z kj mol^(-1) . The value of Delta H_(N = N) is

DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. The heat of combustion of solid benzoic acid at constant volume is -32...

    Text Solution

    |

  2. For hypothetical reaction A(g) + B(g) to C(g) + D(g) Which of the ...

    Text Solution

    |

  3. DeltaE^(@) of combustion of isobutylene is -X kJ mol^(-1). The value o...

    Text Solution

    |

  4. The difference between DeltaH and Delta E at constant voluem is equal ...

    Text Solution

    |

  5. The reaction given below BaCI(2)(s) +2H(2)O(l) rarr BaCI(2).2H(2)O,D...

    Text Solution

    |

  6. Enthalpy change of the reaction 2H(g) to H(2)(g) is -104 kcal The ...

    Text Solution

    |

  7. According to latest sign conventions, the correct expression represent...

    Text Solution

    |

  8. 'If a system A is in thermal equilibrium with B and B is in thermal eq...

    Text Solution

    |

  9. According to Hess's law, the thermal effects of a reaction depends on

    Text Solution

    |

  10. Hess's law states,

    Text Solution

    |

  11. Which of the following statements relationship is not correct?

    Text Solution

    |

  12. A hypothetical reaction, A rarr 2B, proceeds via following sequence of...

    Text Solution

    |

  13. N(2)(g) +2O(2)(g) rarr 2NO(2)(g) +X kJ 2NO(g)+O(2)(g) rarr 2NO(2) +Y...

    Text Solution

    |

  14. Enthalpy of formation of compound is

    Text Solution

    |

  15. The value of DeltaH for the process given below, NH(4)OH(aq)toNH(4)^(+...

    Text Solution

    |

  16. i. H(2)(g) +CI(2)(g)rarr 2HCI(g),DeltaH =- x kJ ii. NaCI +H(2)SO(4) ...

    Text Solution

    |

  17. The reaction SO(2)(g) +1//2O(2)(g) rarr SO(3)(g) should be

    Text Solution

    |

  18. The enthalpy combustion of a substance

    Text Solution

    |

  19. Xg of ethanal was subjected to combustion in a bomb calorimeter and th...

    Text Solution

    |

  20. The enthalpy change for the process C("(graphite)") rarr C((g)), Delta...

    Text Solution

    |