Home
Class 12
CHEMISTRY
For the gaseous reaction involving the c...

For the gaseous reaction involving the complete combustion of iso-butane

A

`DeltaH=DeltaE`

B

`DeltaHgtDeltaE`

C

`DeltaH=DeltaE=0`

D

`DeltaHltDeltaE`

Text Solution

Verified by Experts

The correct Answer is:
B
The gas phase combustion of isobutane `(C_(4)H_(10))` represented as
`C_(4)H_(10)(g)+13//2O_(2)(g)to4CO_(2)(g)+5H_(2)O(g)`
`Deltan_(g)=9-((13)/(2)+1)=9-(15)/(2)=+(3)/(2)`
Since `Deltan_(g)=+ve`
Thus `DeltaH gt E`
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

For the gaseous reaction involving the complete combustion of isobutane

For a gaseous reaction at constant temperature

DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. Ammonium chloride when dissolved in water leads to a cooling sensation...

    Text Solution

    |

  2. An isolated system comprises the liquid in equilibrium with vapours. A...

    Text Solution

    |

  3. For the gaseous reaction involving the complete combustion of iso-buta...

    Text Solution

    |

  4. One of the following reactions involves decrease in entropy

    Text Solution

    |

  5. When a solid changes into liquid, the entropy

    Text Solution

    |

  6. The least random state of water system is

    Text Solution

    |

  7. Which of the following process has negative value of DeltaS ?

    Text Solution

    |

  8. Which of the following describes the criterion of spontaneity?

    Text Solution

    |

  9. Which law of thermodynamics helps in calculating the absolute entropie...

    Text Solution

    |

  10. When the egg is hard boiled, there is

    Text Solution

    |

  11. For the reversible process, the value of DeltaS is given by the expres...

    Text Solution

    |

  12. In any natural process

    Text Solution

    |

  13. For which of the following cases is DeltaS=DeltaH//T

    Text Solution

    |

  14. In a reversible process, Delta S(sys) + Delta S(surr) is

    Text Solution

    |

  15. According to third law of thermodynamics, the entropy at 0 K is zero f...

    Text Solution

    |

  16. Which of the following has highest entropy?

    Text Solution

    |

  17. The total entropy change for a system and its surroundings increases, ...

    Text Solution

    |

  18. Which of the following provide exceptions to third law of thermodynami...

    Text Solution

    |

  19. Which thermodynamics property provides a measure of randomness in the ...

    Text Solution

    |

  20. Which one of the following is correct ?

    Text Solution

    |