Home
Class 12
CHEMISTRY
The rate constant at 0^(@)C is 7.87 xx 1...

The rate constant at `0^(@)C` is `7.87 xx 10^(-7)s^(-1)` for a reaction whose energy of activation is `103 kJmol^(-1)` Calculate the rate constant at `20^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
`1.75 xx 10^(-5)s^(-1)`
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

The first order rate constant for the decomposition of ethyl iodide by the reaction. C_(2)H_(2)I (g)to C_(2)H_(4) (g)+ HI (g)at 600K is 1.60 xx10^(-5)s^(-1). It is energy of activation is 209 kJ/mol. Calculate the rate constant of the reaction at 700 K.

If a second order reaction is 75% complete in 1 hr , calculate the rate constant .

Half life of a first order reaction is 2.1xx10^(12)s^(-1) . Calculate the rate constant of the reaction.

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

The half life of a 1^(st) order reaction is 1 min 40 seconds. Calculate its rate constant (k)

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

The rate constant of a first order reaction at 27^@C is 10^(-3)mi n^(-1) . The temperature coefficient of this reaction is 2. What is the rate constant (in mi n^(-1) ) at 17^@C for this reaction?

A first order reaction is 50% complete in min at 27^(@)C ?and 10 min at 47^(@)C . Calculate the rate constant and activation energy at 27^(@)C .

AAKASH SERIES-CHEMICAL KINETCS-EXERCISE - 3.2
  1. Discuss the energy barrier diagram for reaction rates. When the reacti...

    Text Solution

    |

  2. The rate of a reaction triples when temperature changes from 20^(@)C t...

    Text Solution

    |

  3. The rate constant at 0^(@)C is 7.87 xx 10^(-7)s^(-1) for a reaction wh...

    Text Solution

    |

  4. Decomposition of X and Y obey first order with half lives 54 and 18 mi...

    Text Solution

    |

  5. In the chemical reaction, 3A + B to 2C + 3D, the rate of appearance o...

    Text Solution

    |

  6. Decay constant of a nuclear reaction is temperature independent. Why?

    Text Solution

    |

  7. At 380^(@)C, the half life of decomposition of hydrogen peroxide is 6 ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |