Home
Class 12
CHEMISTRY
The enthalpy of formation for C(2)H(4)(g...

The enthalpy of formation for `C_(2)H_(4)(g)`, `CO_(2)(g)` and `H_(2)O(l)` at `25^(@)C` and `1` atm. Pressure be `52`, `-394` and `-286 kJ mol^(-1)` respectively. The enthalpy of combustion of `C_(2)H_(4)(g)` will be

A

`+ 14.2 kJ/mol`

B

`+ 1412 kJ/mol`

C

`-141.2 kJ/mol`

D

`-1412 kJ/mol`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section -D) Assertion-Reason Type Questions|15 Videos

  • THERMODYNAMICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (Section - B) Objective Type Questions|35 Videos

  • THE SOLID STATE

    AAKASH INSTITUTE|Exercise Assignment (SECTION - D) (ASSERTION-REASON TYPE QUESTION)|20 Videos

Similar Questions

Explore conceptually related problems

The enthalpy of formation for C_(2)H_(4)(g),CO_(2)(g) and H_(2)O(l) at 25^(@)C and 1 atm. Pressure are 52, -394 and -286 KJ mol^(-1) respectively. The entahlpy of combustion of C_(2)H_(4) will be :-

If enthalpies of formation of C_(2)H_(4)(g)1 and H_(2)O(l) at 25(@)C and 1 atm pressure be 52,-394 and -286kJmol^(-1) respectively ,the enthalpy of combustion of C_(2)H_(4)(g) will be

The standard enthalpy of formation of C_(2)H_(4)(l) , CO_(2)(g) and H_(2)O(l) are 52 , 394 and -286 kJ mol^(-1) respectively. Then the amount of heat evolved by burning 7g of C_(2)H_(4)(g) is

The molar enthalpies of combustion of C_(2)H_(2)(g), C("graphite") and H_(2)(g) are -1300,-394 , and -286 kJ mol^(-1) , respectively. The standard enthalpy of formation of C_(2)H_(2)(g) is

The enthalpy of formation of C_(2)H_(5)OH(l) , CO_(2)(g) and H_(2)O(l) are - 277.0, -393.5 and -285.5 kJ/mol respectively.Calculate the enthalpy change for the reaction: C_(2)H_(5)OH(l) + 3O_(2)(g) to 2CO_(2)(g) + 3H_(2)O(l) .

AAKASH INSTITUTE-THERMODYNAMICS-ASSIGNMENT (Section - C) Previous Years Questions
  1. Following reaction occurring in an automobile 2C(8)H(18)(g)+25O(2)(g) ...

    Text Solution

    |

  2. When 5 litres of a gas mixture of methane and propane is perfectly com...

    Text Solution

    |

  3. The enthalpy of formation for C(2)H(4)(g), CO(2)(g) and H(2)O(l) at 25...

    Text Solution

    |

  4. For a reaction to occur spontaneously

    Text Solution

    |

  5. Given that C + O(2) rightarrow CO(2), Delta H^(@) = - x k J 2CO +O...

    Text Solution

    |

  6. Identify the correct statement regarding entropy

    Text Solution

    |

  7. One mole of an ideal gas at 250 K is expanded isothermally from an ini...

    Text Solution

    |

  8. Given : S((s))+(3)/(2)O(2(g))rarrSO(3(g)+2X Kcal SO(2(s))+(1)/(2)O(2...

    Text Solution

    |

  9. At 37 ^(@)C latent heat of fusion of a compound is 3930 J/mol. Entropy...

    Text Solution

    |

  10. For the reaction C2H(5)OH(l) + 3 O(2)(g) rightarrow 2CO(2)(g) + 3 H(2)...

    Text Solution

    |

  11. Change in enthalpy for reaction 2H(2)O(2)(l)rarr2H(2)O(l)+O(2)(g) if...

    Text Solution

    |

  12. When 1 mol of gas is heated at constant volume temperature is raised f...

    Text Solution

    |

  13. Enthalpy of CH(4) + 1/2 O(2) rightarrow CH(3)OH is negative. If enthal...

    Text Solution

    |

  14. The unit of entropy is

    Text Solution

    |

  15. In a closed insulated container, a liquid is stirred with a paddle to ...

    Text Solution

    |

  16. Two moles of ideal gas at 27^(@)C temperature is expanded reversibly f...

    Text Solution

    |

  17. Heat of combustion DeltaH^(@) for C(s),H(2)(g) and CH(4)(g) are 94, -6...

    Text Solution

    |

  18. For the reaction C(3)H(8)(g) + 5 O2)(g) rightarrow 2CO(2)(g) + 4 H(2...

    Text Solution

    |

  19. What is the entropy change (in JK^(-1) mol^(-1)) when one mole of ice ...

    Text Solution

    |

  20. For which one of the following equations is Delta H(react)^(@)equal to...

    Text Solution

    |