Home
Class 12
CHEMISTRY
for an endothermic reaction , energy o...

for an endothermic reaction , energy of activation is `E_(alpha)` and Enthalpy of raction is `Delta H`( both of these in kj / mol ) . Minimum value of `E_(alpha)` will be

A

Less than `DeltaH`

B

Equal to `DeltaH`

C

More than `DeltaH`

D

Equal to zero

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION D : Assertion - Reason Type Questions)|15 Videos

  • CHEMICAL KINETICS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT (SECTION B : Objective Type Questions)|20 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment Section J (Aakash Challengers Questions)|10 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    AAKASH INSTITUTE ENGLISH|Exercise Assignment ( SECTION - A)|45 Videos

Similar Questions

Explore conceptually related problems

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

If activation energy, E_(a) of the reaction is equal to RT then

Delta E and Delta H both are zero in

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

Consider an endothermic reaction XrarrY with the activation energies E_(b) and E_(f) for the backward and forward reaction, respectively. In general

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

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

The activation energy for a simple chemical reaction A rarr B is E_(a) in the forward reaction: The activation of the reverse reaction

Identify the reaction for which Delta H != Delta E

AAKASH INSTITUTE ENGLISH-CHEMICAL KINETICS-ASSIGNMENT (SECTION C : Previous Year Questions)
  1. The half life of a substance in a certain enzymecatalysed reaction is ...

    Text Solution

    |

  2. for the reaction N(2)O(5)(g) to 2NO(2)(g)+(1)/(2)O(2)(g) the valu...

    Text Solution

    |

  3. for an endothermic reaction , energy of activation is E(alpha) an...

    Text Solution

    |

  4. During the kinetic study of the reaction, 2A +B rarrC+D , following re...

    Text Solution

    |

  5. The rate of the reaction 2NO+Cl(2)rarr 2NOCl is given by the rate ...

    Text Solution

    |

  6. For the reaction , N2+3H2rarr2NH3 if (d[NH3])/(dt)=2xx10^(-4)"mol L"^(...

    Text Solution

    |

  7. in the reaction , BrO(3)^(-)(aq)+5Br^(-)(aq)+6H^(+)to 3Br(2)(l)+3H...

    Text Solution

    |

  8. Half life period of a first - order reaction is 1396 seconds. The spec...

    Text Solution

    |

  9. for the reaction ,A+ B to products , it is observed that I. On do...

    Text Solution

    |

  10. the rate constants k(1) and k(2) for two different reactions ar...

    Text Solution

    |

  11. The bromination of acetone that occurs in acid solution is represented...

    Text Solution

    |

  12. In a first-order reaction A→B, if k is rate constant and initial conce...

    Text Solution

    |

  13. the reaction of hydrogen and iodine monochloride is given as H...

    Text Solution

    |

  14. If 60% of a first order reaction was completed in 60 minutes, 50% of t...

    Text Solution

    |

  15. For the reaction, 2A + B rarr 3C + D, which of the following does not ...

    Text Solution

    |

  16. For the reaction N(2) to 3H(2) to 2NH(3), how are the rate of reaction...

    Text Solution

    |

  17. For a first-order reaction A rarr B the reaction rate at reactant conc...

    Text Solution

    |

  18. A nuclide of an alkaine earth metal undergoes radioactive deacy by em...

    Text Solution

    |

  19. The rate of reaction between two reactants A and B decreases by facto...

    Text Solution

    |

  20. A reaction is 50 % complete in 2 hours and 75 % complete in 4 hours th...

    Text Solution

    |