Home
Class 12
CHEMISTRY
The heat of combustion of acetylene is ...

The heat of combustion of acetylene is 312 Kcal . If heat of formation of `CO_(2) & H_(2)O` are -94 & -68 Kcal respectively . Given that heat of atomisation of C& H are 150 & 50 Kcal respectively and C-H bond energy is 93 Kcal . Calculate `(DeltaH_(C=C))/(6)`

Text Solution

Verified by Experts

`E_(C -= C) = 160.86` k cal
Promotional Banner

Topper's Solved these Questions

  • THERMOCHEMISTRY

    MOTION|Exercise Exercise - 4 Level-I|15 Videos

  • THERMOCHEMISTRY

    MOTION|Exercise Exercise - 4 Level-II|8 Videos

  • THERMOCHEMISTRY

    MOTION|Exercise Exercise - 2 (Level-II)|29 Videos

  • SURFACE CHEMISTRY

    MOTION|Exercise Exercise - 3 (Level-II)|12 Videos

  • THERMODYNAMICS

    MOTION|Exercise EXERCISE - 4 (LEVEL - II)|19 Videos

Similar Questions

Explore conceptually related problems

The heat of combustion of ethyl alcohol is -300 kcal. If the heats of formation of CO_(2)(g) and H_(2)O(l) are -9.3 and -68.5 kcal respectively, calculate the heat of formation of ehtyl alcohol.

The value of Delta H for the combustion of C(s) is - 94.4 Kcal. The heat of formation of CO_(2)(g) is :-

MOTION-THERMOCHEMISTRY -Exercise - 3
  1. The polymerisation of ethylene to linear polyethylene is represented b...

    Text Solution

    |

  2. From the following data : Enthalpy of formation of CH(3)CN=87.86 kJ/...

    Text Solution

    |

  3. The heat of combustion of acetylene is 312 Kcal . If heat of formatio...

    Text Solution

    |

  4. Using the bond enthalpy data given below, calculate the enthalpy of fo...

    Text Solution

    |

  5. Find bond enthalpy of S-S bond from the following data: C(2)H(5)-S-C...

    Text Solution

    |

  6. Find the enthalpy of S – S bond from the data. C(2) H(5)- S - S - ...

    Text Solution

    |

  7. Find the enthalpy of S – S bond from the data. S (g) = Delta H(f)^...

    Text Solution

    |

  8. The enthalpy of formation of ethane, ethylene and benzene from the gas...

    Text Solution

    |

  9. Calculate the heat of combustion of methyl alcohol at 298 K from the f...

    Text Solution

    |

  10. Calculate the electron gain enthalpy of fluorine atom using the follow...

    Text Solution

    |

  11. Cesium chloride is formed according to the following equation Cs (s)...

    Text Solution

    |

  12. The Born-Haber cycle for rubidium chloride (RbCl) is given below (the ...

    Text Solution

    |

  13. From the following data, C(s , graphite) + O(2) (g) to CO(2) (g) ...

    Text Solution

    |

  14. Calculate the mass of mercury which can be liberated from HgO at 25^(@...

    Text Solution

    |

  15. From the following data of DeltaH of the following reactions C (s) +...

    Text Solution

    |

  16. Although C(P) is usually assumed to be constant, for more accurate cal...

    Text Solution

    |

  17. Although C(P) is usually assumed to be constant, for more accurate cal...

    Text Solution

    |

  18. An intimate mixture of ferric oxide and aluminium is used as solid fue...

    Text Solution

    |

  19. A person takes 15 breaths per minute. The volume of air inhaled in eac...

    Text Solution

    |

  20. The enthalpies of neutralization of a weak acid HA & a weak acid HB by...

    Text Solution

    |