Home
Class 12
CHEMISTRY
Decay constant of a reaction is 1.1 xx 1...

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

A

`1.2 xx 10^(8)`

B

`6.3 xx 10^(8)`

C

`3.3 xx 10^(8)`

D

`2.1 xx 10^(8)`

Text Solution

Verified by Experts

The correct Answer is:
B

`t_(1//2) = (0.693)/(k), (0.693)/(1.1 xx 10^(-9)) = 6.3 xx 10^(8) sec`
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

Initial concentration of reactant of Zero order reaction is 0.04 M, rate constant of the reaction is 1.2xx10^(-3) mol dm^(-3) sec^(-1) . Hence the half life time is

The rate constant of first order reaction is 10^(-2)"min"^(-1) . The half-life period of reaction is

The rate constant of a reaction is 0.69 xx 10^(-1) and the initial concentration is 0.2 "mol l"^(-1) . The half-life period is

The decay constant of a radioactive material is 5 xx 10^(-4) per year.find its half-life period.

The specific reaction rate of a first order reaction is 0.347 times 10^–3 sec^–1 . The half life period of the reaction will be :

A first order reaction is found to have a rate constant, k = 4.2 xx 10^(-12) s^(-1) . Find the half-life of the reaction.

A2Z-CHEMICAL KINETICS-Integrated Rate Expression
  1. A first order reaction is half completed in 45 minutes. How long does ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  13. What will be the order of reaction and rate constant for a chemical ch...

    Text Solution

    |

  14. If 75% of a first order reaction completed in 15 min. Then 90% of the ...

    Text Solution

    |

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

    Text Solution

    |

  16. The half-life for a reaction at initial concentration of 0.5 and 1.0 "...

    Text Solution

    |

  17. 75% of a first-order reaction was completed in 32 minutes, when was 50...

    Text Solution

    |

  18. A drop of solution (volume 0.05 mL) contains 3 xx 10^(-6) "mole" H^(o+...

    Text Solution

    |

  19. A certain zero order reaction has k = 0.025 M s^(-1) for the disappear...

    Text Solution

    |

  20. For a certain reaction the variation of rate constant with temperature...

    Text Solution

    |