Home
Class 12
CHEMISTRY
The standard enthalpy of formation of oc...

The standard enthalpy of formation of octane `(C_(8)H_(18))` is `-250kJ //mol`. Calculate the enthalpy of combustion of `C_(8)H_(18)`. The enthalpy of formation of `CO_(2)(g)` and `H_(2)O(l)` are `-394 kJ//mol` and `-286kJ//mol` respectively.

A

`-5200 kJ mol^(-1)`

B

`-5726 kJ mol^(-1)`

C

`-5476 kJ mol^(-1)`

D

`-5310 kJ mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 19

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

  • NTA NEET SET 24

    NTA MOCK TESTS|Exercise CHEMISTRY|45 Videos

Similar Questions

Explore conceptually related problems

The standard enthalpy of formation of octane (C_(8)H_(18)) is -250kJ //mol . Calculate the enthalpy of combustion of C_(8)H_(18) . The enthalpy of CO_(2)(g) and H_(2)O(l) are -394 kJ//mol and -286kJ//mol respectively.

Calculate the standard enthalpy of formation of propane (C_(3)H_(8)) if its enthalpy of combustion is -2220.2 kJ "mol"^(-1) .The enthalpies of formation of CO_(2)(g) and H_(2)O(l) are -393.5 and -285.8 kJ "mol"^(-1) respectively.

Standard enthalpy of formation of water is -286 kJ mol^-1 . Calculate the enthalpy change for formation of 0.018 kg of water.

Calculate the enthalpy of formation of acetic acid (CH_(3)COOH) if its enthalpy of combustion is 867 kJ mol^(-1) .The enthalpies of fromation of CO_(2)(g) and H_(2)O(l) are -393.5 and -285.9 kJ mol^(-1) respectively.

The enthalpy change for the reaction C_(3)H_(8)(g)+H_(2)(g) rarr C_(2)H_(6)(g)+CH_(4)(g) at 25^(@)C is -55.7 kJ/mol. Calculate the enthalpy of combustion of C_(2)H_(6)(g) . The enthalpy of combustion of H_(2) , & CH_(4) are -285.8 & -890.0 kJ/mol respectively. enthalpy of combustion of propane is -2220" kJ mol"^(-1) .

The combustion of butane (C_(4)H_(10)) is exothermic by 2878.7 kJ "mol"^(-1) .Calculate the standard enthalpy of formation of butane given that the standard enthalpies of formation of CO_(2)(g) and H_(2)O(l) are -393.5 kJ "mol"^(-1) and -285.8 kJ "mol"^(-1) respectively.

NTA MOCK TESTS-NTA NEET SET 23-CHEMISTRY
  1. Which of the following is responsible for the inability of meso compo...

    Text Solution

    |

  2. Arrange the following compounds in decreasing order of acidity. (i) ...

    Text Solution

    |

  3. The xenon compounds that are isostructural with IBr(2)^(-) and BrO(3)^...

    Text Solution

    |

  4. Phenylglyoxal, (C(6)H(5)COCHO), on heating with concentrated NaOH give...

    Text Solution

    |

  5. What products are expected from the desproprtionation reaction of hypo...

    Text Solution

    |

  6. What are the organic products formed in the following reaction C6H5COO...

    Text Solution

    |

  7. What are the correct axial distance and axial angles for rhombohedral ...

    Text Solution

    |

  8. Name the end product in the following series of reaction CH3COOHover...

    Text Solution

    |

  9. Which one of the following species acts as both Bronsted acid and base...

    Text Solution

    |

  10. Which of the following is not a non-electrolyte ?

    Text Solution

    |

  11. In Lassaigne's test, the organic compound is fused with sodium metal s...

    Text Solution

    |

  12. Arrange the following in order of increasing reactivity towards nucleo...

    Text Solution

    |

  13. According to MOT whch of the following statement about magnetic charac...

    Text Solution

    |

  14. In the following sequence of reaction what is D?

    Text Solution

    |

  15. The bonds present in N2O5, are

    Text Solution

    |

  16. The bleaching action of bleaching powder is due to the formation of

    Text Solution

    |

  17. Which of the following ions will liberated iodine when trated with KI?

    Text Solution

    |

  18. The standard enthalpy of formation of octane (C(8)H(18)) is -250kJ //m...

    Text Solution

    |

  19. For a hypothetical reaction A(g) + 3B(g) to 2C(g). Delta H = -100 kJ a...

    Text Solution

    |

  20. Complete the following reaction

    Text Solution

    |