Home
Class 12
CHEMISTRY
For an endothermic reaction, Delta H rep...

For an endothermic reaction, `Delta H` represents the enthalpy of the reaction in kJ `mol^(-1)`. The mininum amount of activation energy will be

A

less than `DeltaH`

B

zero

C

more than `DeltaH`

D

equal to `DeltaH`

Text Solution

Verified by Experts

The correct Answer is:
C


`E_(a) gt DeltaH`
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|44 Videos
  • THERMODYNAMICS

    VMC MODULES ENGLISH|Exercise LEVEL-2 (NUMERICAL VALUE TYPE)|15 Videos
  • THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise JEE ADVANCED (ARCHIVE)|31 Videos
  • THERMODYNAMICS & THERMOCHEMISTRY

    VMC MODULES ENGLISH|Exercise Impeccable|48 Videos

Similar Questions

Explore conceptually related problems

For an endothermic reaction, where Delta H represents the enthalpy of reaction in kJ mol^(-1) , the minimum value for the energy of activation will be

An endothermic reaction is represented by the graph :

For an exothermic reaction ArarrB , the activation energy is 65kJmol^(-1) and enthalpy of reaction is 42kJmol^(-1) . The activation energy for the reaction BrarrA will be:

Dimerisation of NO_2, is an exothermic reaction. If enthalpy of reaction is /_\H, then the minimum value of activation energy for forward reaction (E_a) will be

For an endothermic reaction energy of activation is E_(a) and enthlpy of reaction is Delta H (both in kJ "mol"^(-1) ). Minimum value of E_(a) will be

The activation energy of exothermic reaction ArarrB is 80 kJ "mol"^(-1) . The heat of reaction is 200 kJ "mol"^(-1) . The activation energy for the reaction Brarra ( in kJ/mol) will be :

In an exothermic reaction X rarr Y , the activation energy is 100 kJ mol^(-1) of X . The enthalphy of the reaction is -140 kJ mol^(-1) . The activation energy of the reverse reaction Y rarr X is

Enthalpy of a reaction at 27^(@)C is "15 kJ mol"^(-1) . The reaction will be feasible if entropy is

An exothermic reaction XrarrY has an activation energy of 90kJ mol^(-1) of X and the heat of reaction is 250 kJ . Find the activation energy of the reaction YrarrX .

An endothermic reaction with high activation energy for the forward reaction is given by the diagram

Knowledge Check

  • An endothermic reaction with high activation energy for the forward reaction is given by the diagram

    A
    B
    C
    D
  • VMC MODULES ENGLISH-THERMODYNAMICS-JEE (MAIN ARCHIVE)
    1. For an endothermic reaction, Delta H represents the enthalpy of the re...

      Text Solution

      |

    2. Identify the intensive quantity from the following

      Text Solution

      |

    3. Which of the following is an endothermic reaction?

      Text Solution

      |

    4. A process is called reversible when

      Text Solution

      |

    5. Which one of the following statements is false?

      Text Solution

      |

    6. Two moles of an ideal gas expanded isothermally and reversibly from 1L...

      Text Solution

      |

    7. Which of the following statements is/are false?

      Text Solution

      |

    8. Among the following, the intensive property is (properties are):

      Text Solution

      |

    9. A piston filled with 0.04 mol of an ideal gas expands reversibly from ...

      Text Solution

      |

    10. The standard free energy of formation of NO(g) is 86.6 kJ/ mol at 29...

      Text Solution

      |

    11. DeltaU is equal to

      Text Solution

      |

    12. The combination of plots which does not represent isothermal expansion...

      Text Solution

      |

    13. Consider the reversible isothermal expansion of an ideal gas in a clos...

      Text Solution

      |

    14. The entropy change associated with the conversion of 1 kg of ice at 27...

      Text Solution

      |

    15. An ideal gas undergoes isothermal compression from 5 m^(3) to 1 m^(3) ...

      Text Solution

      |

    16. The process with negative entropy change is

      Text Solution

      |

    17. Two bolcks to the same metal having same mass and at temperature T1 an...

      Text Solution

      |

    18. for a diatomic ideal gas in a closed system , which of the follo...

      Text Solution

      |

    19. A process has Delta H= 200 J mol^(-1) and DeltaS=40" JK"^(-1)mol^(-1)....

      Text Solution

      |

    20. The standard reaction Gibbs energy for a temperature T is given by ...

      Text Solution

      |