Home
Class 12
CHEMISTRY
For the reaction C(2)H(4)(g)+3O(2)(g) ...

For the reaction
`C_(2)H_(4)(g)+3O_(2)(g) rarr 2CO_(2) (g) +2H_(2)O(l)`, `Delta E=-1415 kJ`. The `DeltaH` at `27^(@)C` is

A

-140 kJ

B

-142 kJ

C

-141 kJ

D

- 143 kJ

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (PREVIOUS YEARS ENTRANCE EXAMS)|76 Videos
  • CHEMICAL KINETICS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos
  • CHEMISTRIY IN EVERYDAY LIFE

    MARVEL PUBLICATION|Exercise TEST YOUR GRAPS|24 Videos

Similar Questions

Explore conceptually related problems

At 27^(@) C , the combustion of ethane takes place according to the reaction C_(2) H_(6)(g) + 7/2O_(2)(g) rightarrow 2CO_(3)(g) + 3H_(2)O(l) Delta E - Delta H for this reaction at 27^(@)C will be

For the reaction C_(3)H_(8)(g) + 5 O_2)(g) rightarrow 2CO_(2)(g) + 4 H_(2)O(l) at constant temperature , DeltaH - Delta E is

Compounds with carbon-carbon double bond, such as ethylene, C_(2)H_(4) , add hydrogen in a reaction called hydrogenation. C_(2)H_(4)(g)+H_(2)(g) rarr C_(2)H_(6)(g) Calculate enthalpy change for the reaction, using the following combustion data C_(2)H_(4)(g) + 3O_(2)(g) rarr 2CO_(2)(g) + 2H_(2)O(g) , Delta_("comb")H^(Θ) = -1401 kJ mol^(-1) C_(2)H_(6)(g) + 7//2O_(2)(g)rarr 2CO_(2) (g) + 3H_(2)O(l) , Delta_("comb")H^(Θ) = -1550kJ H_(2)(g) + 1//2O_(2)(g) rarr H_(2)O(l) , Delta_("comb")H^(Θ) = -286.0 kJ mol^(-1)

The value of enthalpy change (DeltaH) for the reaction C_(2)H_(5)OH (l)+3O_(2) (g) rarr 2CO_(2) (g) +3H_(2)O (l) at 27^(@)C is -1366.5 kJ mol^(-1) . The value of internal energy change for the above reactio at this temperature will be

For the reaction : C_(2)H_(5)OH(l)+3O_(2)(g)rarr2CO_(2)(g)+3H_(2)O(g) if Delta U^(@)= -1373 kJ mol^(-1) at 298 K . Calculate Delta H^(@)

Consider the reaction at 300K C_(6)H_(6)(l)+(15)/(2)O_(2)(g)rarr 6CO_(2)(g)+3H_(2)O(l),DeltaH=-3271 kJ What is DeltaU for the combustion of 1.5 mole of benzene at 27^(@)C ?

MARVEL PUBLICATION-CHEMICAL THERMODYNAMICS AND ENERGETICS-MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP)
  1. In endothermic reaction

    Text Solution

    |

  2. Identify the state function among the following :

    Text Solution

    |

  3. For the reaction C(2)H(4)(g)+3O(2)(g) rarr 2CO(2) (g) +2H(2)O(l), De...

    Text Solution

    |

  4. For the reaction N(2)(g)+3H(2)(g)to2NH(3)(g), which of the following...

    Text Solution

    |

  5. A system, which can exchange mass as well as energy with its surroundi...

    Text Solution

    |

  6. The heat of combustion of carbon is 394 kJ mol^(-1). The heat evolved ...

    Text Solution

    |

  7. The value of heat of neutralisation is highest in

    Text Solution

    |

  8. Enthalpy of a compound is equal to its

    Text Solution

    |

  9. Which of the following is an intensive property?

    Text Solution

    |

  10. The value of Delta H for the combustion of C((s)) is -94.0 kcal. Find ...

    Text Solution

    |

  11. For an ideal gas the relationship between internal energy change Delta...

    Text Solution

    |

  12. Calculate the heat of hydrogenation , C(2)H(4)(g)+H(2)(g)toC(2)H(6)(...

    Text Solution

    |

  13. The heat of neutralisation of one mole of a strong acid (in dilute sol...

    Text Solution

    |

  14. In a reaction, if the heat content of product is more than that of rea...

    Text Solution

    |

  15. lf X kJ is the heat produced by the neutralisation of 1 L of 1 M H(2)S...

    Text Solution

    |

  16. The enthalpies of elements in their standard states are taken as zero....

    Text Solution

    |

  17. Using the following thermochemical data. C(S)+O(2)(g)rarr CO(2)(g), ...

    Text Solution

    |

  18. The difference between the heats of reaction at constant pressure and ...

    Text Solution

    |

  19. The heat of combustion of yellow phoshphorus and red phosphorus are -9...

    Text Solution

    |

  20. For an isochoric process, the change in

    Text Solution

    |