Home
Class 12
CHEMISTRY
For a first order reaction the rate cons...

For a first order reaction the rate constant is `6.909 "min"^(-1)`. The time taken for 75 % conversion in minutes is

A

`(2)/(3)log2`

B

`(2)/(3)log4`

C

`(3)/(2)log2`

D

`(3)/(2)log4`

Text Solution

Verified by Experts

The correct Answer is:
A

`t=(2.303)/(k)log.(100)/(100-75)`
= `(2.303)/(k)log4.=(1)/(3)xx2log2`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Collision Theory, Energy of Activation and Arrhenius Equation)|54 Videos
  • CHEMICAL KINETICS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Photochemical Reaction)|4 Videos
  • CHEMICAL KINETICS

    ERRORLESS|Exercise Assertion & Reason|6 Videos
  • CARBOXYLIC ACIDS

    ERRORLESS|Exercise Assertion & Reason|5 Videos
  • CHEMISTRY IN EVERYDAY LIFE

    ERRORLESS|Exercise Assertion & Reason|4 Videos

Similar Questions

Explore conceptually related problems

A first order reaction is 10% complete in 20 min. the time taken for 19% completion is :

75 % of first order reaction is complete in 30 minutes. What is the time required for 93.75 % of the reaction (in minutes) ?

Rate constant of a first order reaction, A to Product is 0.016" min"^(-1) . Calculate the time required for 80% of the reaction to be completed.

60% of a first order reaction was completed in 60 min . The time taken for reactants to decompose to half of their original amount will be

A first order reaction has t_(1//2) = 6.93 min . The rate constant is……….. .

For a first order reaction 75% reaction complete in 90 min. for the same reaction 60% complete in what time?

If a first order reaction takes 32 minutes for 75% completion, then time required for 50% completion is :

ERRORLESS-CHEMICAL KINETICS-NCERT BASED QUESTIONS (Rate Law and Rate Constant)
  1. A substance reacts with initial concentration of a mol dm^(-3) accrodi...

    Text Solution

    |

  2. Which one is a correct match?

    Text Solution

    |

  3. For a first order reaction the rate constant is 6.909 "min"^(-1). The ...

    Text Solution

    |

  4. Which of these changes with time for a first-order reaction A Rate ...

    Text Solution

    |

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

    Text Solution

    |

  6. The unit of rate constant depends upon the

    Text Solution

    |

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

    Text Solution

    |

  8. The temperature coefficient of most of the reactions lies between

    Text Solution

    |

  9. The rate constant for the reaction, 2N(2)O(5) to 4NO(2)+O(2) is 3xx10^...

    Text Solution

    |

  10. The following data are for the decomposition of ammonium nitrite in aq...

    Text Solution

    |

  11. The thermal decomposition of a compound is of first order. If 50% of a...

    Text Solution

    |

  12. For a zero order reaction, the plot of concentration of a reactant vs ...

    Text Solution

    |

  13. 75% of a first-order reaction was completed in 32 minutes, when was 50...

    Text Solution

    |

  14. Which of the following is not correct

    Text Solution

    |

  15. Cyclopropane rearranges to form propane : DeltararrCH(3)-CH=CH(2) ...

    Text Solution

    |

  16. Consider the decomposition of N(2)O(5) as N(2)O(5)rarr2NO(2)+1//2O(2...

    Text Solution

    |

  17. Sucrose decomposes in acid solution into glucose and fructose accordin...

    Text Solution

    |

  18. For the second order reaction, A+Brarr"products" when a moles of A...

    Text Solution

    |

  19. Consider a first order gas phase decomposition reaction given below: ...

    Text Solution

    |

  20. The following data is obtained during the first order thermal decompos...

    Text Solution

    |