Home
Class 12
CHEMISTRY
With 100 kJ mol- activation energy for a...

With 100 kJ mol- activation energy for an uncatalysed reaction at 20°C, the catalyst lowers the energy of activation by 75%. What will be the effective rate if other conditions are same?

Text Solution

Verified by Experts

The correct Answer is:
`2.34 xx 10^(13)` times
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETCS

    AAKASH SERIES|Exercise EXERCISE -3.1.3|6 Videos
  • CHEMICAL EQUILIBRIUM

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS|5 Videos
  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Objective Exercise - 4 (Assertion (A) & Reason (R) Type Questions)|44 Videos

Similar Questions

Explore conceptually related problems

A catalyst lowered the energy of activation by 25 kJ mol^(-1) .How many times , the rate reaction increases?

How is the reaction rate influenced by energy of activation ?

(A)Catalyst increases the rate of reaction. (R ) Catalyst functions by lowering the energy of activation.

The activation energy of a reaction is zero. The rate constant of the reaction:

If the activation energy for the forward reaction is 150kJ mol^(-1) and that of the reverse reaction is 260kJ mol^(-1) . What is the enthalpy change for the reaction

A reaction proceeds 5 times more at 60^(@)C , as it does at 30^(@)C . Calculate the energy of activation.

According to collision theory of reaction rates, the activation energy is

(A) If the activation energy of a reaction is zero, temperature has no effect on the rate constant. (R ) Lower the activation energy, faster is the reaction.

AAKASH SERIES-CHEMICAL KINETCS-EXERCISE - 3.2
  1. At 380^(@)C, the half life of decomposition of hydrogen peroxide is 6 ...

    Text Solution

    |

  2. The rate constant of a first order reaction at 500 K is 2.35 xx 10^(-5...

    Text Solution

    |

  3. With 100 kJ mol- activation energy for an uncatalysed reaction at 20°C...

    Text Solution

    |

  4. Write the rate equation, integral rate constant and half life dependen...

    Text Solution

    |

  5. When rate is plotted vs (a -x^(n)), a straight line is obtained wi...

    Text Solution

    |

  6. What is a pesudo - order reaction ? Why is it so called ?

    Text Solution

    |

  7. If a second order reaction is 75% complete in 1 hr , calculate th...

    Text Solution

    |

  8. For a reaction , the reactant concentration decreases 20% in 1 hr a...

    Text Solution

    |

  9. The rate of a first order reaction is 0.04 mol L^(-1) s^(-1) after ...

    Text Solution

    |

  10. A reaction proceeds 5 times more at 60^(@)C, as it does at 30^(@)C ...

    Text Solution

    |

  11. Rate constant of a reaction is 10^(-3) s^(-1). Calculate the perc...

    Text Solution

    |

  12. For a reaction A + 2B to 2C, the kinetic data is given below: ...

    Text Solution

    |

  13. Time required for 50% completion of the first order reaction in ...

    Text Solution

    |

  14. A first order reaction is 50% complete in min at 27^(@)C ?and 10 m...

    Text Solution

    |

  15. The concentrations of N(2)O(5) decomposing in first order kinetics a...

    Text Solution

    |

  16. CH(3)O CH(3) (g) to CH(4)(g) + H(2)(g) + CO(g) . The decomposition fo...

    Text Solution

    |

  17. For the catalytic decomposition of a substance , half - lives are g...

    Text Solution

    |

  18. A drop of solution (0.05 mL) contains 2 xx 10^(6) mol of H^(+). How ...

    Text Solution

    |

  19. Half - life period of ""^(14)C is 5770 years . If and old wooden t...

    Text Solution

    |

  20. Ten gram atoms of an alpha active element disintegrated in a sealed...

    Text Solution

    |