Home
Class 12
CHEMISTRY
t(1//4) can be taken as the time taken f...

`t_(1//4)` can be taken as the time taken for concentration of reactant to drop to `.^(3)//_(4)` of its initial value. If the rate constant for a first order reaction is `K`, then `t_(1//4)` can be written as:

A

0.29/K

B

0.10/K

C

0.75/K

D

0.69/K

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • Chemical Kinetics

    MOTION|Exercise Exercise - 4 (Level - II)|15 Videos

  • Chemical Kinetics

    MOTION|Exercise Exercise - 4 (Level - II) (SUBJECTIVE PROBLEM)|1 Videos

  • Chemical Kinetics

    MOTION|Exercise Exercise - 3|72 Videos

  • CHEMICAL EQUILIBRIUM

    MOTION|Exercise Exercise - 4|20 Videos

  • CLASSROOM PROBLEMS

    MOTION|Exercise Electrochemistry|22 Videos

Similar Questions

Explore conceptually related problems

The time taken for the completion of 3/4 of a first order reaction is

For a first order reaction, the ratio of t_(1//2) to t_(3//4) is

For given first order reaction, the reactant reduced to 1/4th its initial value in 10 min. The rate constant of the reaction is

In a first order reaction the concentration of the reactant is reduced to one-fourth of its initial value in 50 seconds. Cacluate the rate constant the reaction

MOTION-Chemical Kinetics-Exercise - 4 (Level - I)
  1. Consider an endothermic reaction XrarrY with the activation energies E...

    Text Solution

    |

  2. A reaction involiving two different reactants can never be:

    Text Solution

    |

  3. t(1//4) can be taken as the time taken for concentration of reactant t...

    Text Solution

    |

  4. A reaction was found to be second order with respect to the concentrat...

    Text Solution

    |

  5. Rate of reaction can be expressed by Arrhenius equation as k = Ae^(–E/...

    Text Solution

    |

  6. The following mechanism has been propsoed for the reaction of NO with ...

    Text Solution

    |

  7. The energies of activation for forward and reverse reaction for A(2)+...

    Text Solution

    |

  8. Consider a reaction, 2A + B rarr Products When concentration of B al...

    Text Solution

    |

  9. For a reaction (1)/(2)A rarr 2B, rate of disappearance of 'A' is relat...

    Text Solution

    |

  10. The half-life period of a first-order chemical reaction is 6.93 min. T...

    Text Solution

    |

  11. The time for half-life period of a certain reaction, A rarr products i...

    Text Solution

    |

  12. The rate of a chemical reaction doubles for every 10^(@)C rise of temp...

    Text Solution

    |

  13. For a first order reaction , A to Products, the concentrations of A ch...

    Text Solution

    |

  14. The rate of a reaction doubles when its temperature changes form 300 K...

    Text Solution

    |

  15. Higher order (gt3) reaction are rare due to :

    Text Solution

    |

  16. Decompsition of H(2)O(2) follows a frist order reactions. In 50 min th...

    Text Solution

    |

  17. Two reactions R(2) and R(2) have identical pre - exponential factors. ...

    Text Solution

    |

  18. At 518^(@)C the rate of decomposition of a sample of gaseous acetaldeh...

    Text Solution

    |