Home
Class 12
CHEMISTRY
Heat of combustion of CH(4),C(2)H(6), C(...

Heat of combustion of `CH_(4),C_(2)H_(6), C_(2)H_(4)` and `C_(2)H_(2)` gases are -212.8, -212.8, -373.0, -337.0 and -310.5 Kcal respectively at the same temperature. The best fuel among these gases is :

A

`C_(8) H_(18)`

B

`CH_(4)`

C

`C_(3) H_(8)`

D

`C_(2) H_(6)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • THERMOCHEMISTRY

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

  • THERMOCHEMISTRY

    MOTION|Exercise Exercise - 3|50 Videos

  • THERMOCHEMISTRY

    MOTION|Exercise EXERCISE -1 SECTION E|3 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

Heats of combustion of CH_(4),C_(2)H_(6),C_(2)H_(4) and C_(2)H_(2) are -212.8,-373.0,-337.0 and -310.5 kcal respectively at the same temperature. The best fuel among these gases is:

C_(2)H_(4),C_(4)H_(10), C_(3)H_(8),CH_(4)

The heats of combustion of C_(2)H_(4), C_(2)H_(6) and H_(2) gases are -1409.5 KJ, -1558.3 KJ and -285.6 KJ respectively. The heat of hydrogenation of ethene is

DeltaH combustion for CH_(4),C_(2)H_(6) , and C_(3)H_(8) are -210.8,-368.4 and -526.3 kcal mol^(-1) , respectively. Calculate DeltaH combustion for octane.

MOTION-THERMOCHEMISTRY -EXERCISE - 2 (LEVEL - I)
  1. From the following data, the heat of formation of Ca(OH)(2 (s)) at ...

    Text Solution

    |

  2. Given that DeltaH(" comb ") of cyclopropane is -4000 kJ mol^(-1) . The...

    Text Solution

    |

  3. Heat of combustion of CH(4),C(2)H(6), C(2)H(4) and C(2)H(2) gases are ...

    Text Solution

    |

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

    Text Solution

    |

  5. Calculate the bond energy of C-H bond from the following data : (a) ...

    Text Solution

    |

  6. Heat evolved in the reaction H(2)+Cl(2) rarr 2HCl is 182 kJ Bond ene...

    Text Solution

    |

  7. The bond enthalpies of H(2) , X(2) and HX are in the ratio of 2 : 1 : ...

    Text Solution

    |

  8. For the reaction, bond energies are given as under – (i) C—C,...

    Text Solution

    |

  9. The heat of combustion of ethylene C(2) H(4) (g) is - 1420 kJ/mole . T...

    Text Solution

    |

  10. The reaction CH(4) (g) + Cl2 (g) to CH(3) Cl (g) to HCl (g) has Delta ...

    Text Solution

    |

  11. If x(1) , x(2) and x(3) are enthalpies of H-H , O=O and O-H bonds resp...

    Text Solution

    |

  12. Delta(r) H of which of the following reactions is zero ?

    Text Solution

    |

  13. For the allotropic change represented by the equation C (graphite) to ...

    Text Solution

    |

  14. Reactions involving gold have been of particular intrests to alchemist...

    Text Solution

    |

  15. The standard molar enthalpies of formation of cyclohexane (l) and benz...

    Text Solution

    |

  16. From the following data at 25^(@) C {:("Reaction" ,, Delta(r) H^(@) ...

    Text Solution

    |

  17. The latent heats of fusion in J g^(-1) of five substances a (mol.mass ...

    Text Solution

    |

  18. For the process, melting of ice at 260 K the Delta H is -

    Text Solution

    |

  19. The value of Delta H^(@) for the reaction Cu^(+) (g) + I^(-) (g) to Cu...

    Text Solution

    |

  20. The heat of neutralisation is constant when dilute solution of

    Text Solution

    |