Home
Class 12
CHEMISTRY
99% of a first order reaction was comple...

`99%` of a first order reaction was completed in `32 min`. When will `99.9%` of the reaction complete.

A

`48 min`

B

`46 min`

C

`50 min`

D

`45 min`

Text Solution

Verified by Experts

The correct Answer is:
A
`K xx 32 = ln ((100)/(1))` …(i)
`K xx t = ln((100)/(0.1))` …(ii)
eq. `(ii)//(i)`
`(t)/(32) = (3 ln 10)/(2 ln 10)`
`t = 48 min`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    A2Z|Exercise Initial Rate Method And Ostwaid Method|18 Videos

  • CHEMICAL KINETICS

    A2Z|Exercise Arrhenius Equation, Effect Of Temprature And Effect Of Catalysts|35 Videos

  • CHEMICAL KINETICS

    A2Z|Exercise Rate Law, Law Of Mass Action, Order Of The Reaction, And Molecularity|48 Videos

  • BIOMOLECULES

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • COORDINATION COMPOUNDS

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

75% of a first order reaction was completed in 32 min. When was 50% of the reaction completed ?

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

A first orde reaction is 75% completed after 32min. When was 50% of the reaction completed?

A2Z-CHEMICAL KINETICS-Integrated Rate Expression
  1. Half-life of a reaction is found to be inversely proportional to the c...

    Text Solution

    |

  2. The rate for a first order reaction is 0.6932 xx 10^(-2) mol L^(-1) "m...

    Text Solution

    |

  3. 99% of a first order reaction was completed in 32 min. When will 99.9%...

    Text Solution

    |

  4. For which order reaction a straight line is obtained along with x-axis...

    Text Solution

    |

  5. Which graph represents zero-order reaction [A(g) rarr B (g)] ?

    Text Solution

    |

  6. ……………………… reaction obeys the expresison t(1//2) = 1//ka in chemical ki...

    Text Solution

    |

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

    Text Solution

    |

  8. A reaction that is of the first order with respect to reactant A has a...

    Text Solution

    |

  9. A first-order reaction was started with a decimolar solution of the re...

    Text Solution

    |

  10. A first order reaction is half completed in 45 minutes. How long does ...

    Text Solution

    |

  11. The rate constant of reaction 2 A + B rarr C is 2.57 xx 10^(-5) L "...

    Text Solution

    |

  12. Decay constant of a reaction is 1.1 xx 10^(-9)//sec, then the half-lif...

    Text Solution

    |

  13. A follows first order reaction. (A) rarr Product The concentration...

    Text Solution

    |

  14. Gaseous N(2)O(5) decomposes according to the following equation: N(2...

    Text Solution

    |

  15. Which of the following curve represent zero order reaction of A rarr p...

    Text Solution

    |

  16. t(1//2) = constant confirms the first order of the reaction as one a^(...

    Text Solution

    |

  17. In presence of HCl, sucrose gets hydrolysed into glucose and fructose....

    Text Solution

    |

  18. Consider a reaction A(g) rarr 3B(g) + 2C(g) with rate constant is 1.38...

    Text Solution

    |

  19. For the reaction A + 2B rarr products (started with concentration take...

    Text Solution

    |

  20. A reaction 2A + B overset(k)rarr C+ D is first order with respect to A...

    Text Solution

    |