Home
Class 11
CHEMISTRY
The rate constant for a first order reac...

The rate constant for a first order reaction whose half life is 480 sec, is :

A

`1.44xx10^(-3) sec ^(-1)`

B

`1.44xx sec ^(-1)`

C

`0.72xx10^(-3) sec ^(-1)`

D

`2.88 xx 10^(-3) sec ^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
`k = (0.693)/(t_(1//2))`
Promotional Banner

Topper's Solved these Questions

  • RATES OF REACTIONS AND CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Selected Straight|49 Videos

  • RATES OF REACTIONS AND CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Comprehension|13 Videos

  • RATES OF REACTIONS AND CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|29 Videos

  • PHYSICAL AND CHEMICAL EQUILIBRIA

    DINESH PUBLICATION|Exercise ULTIMATE PREPARATORY PACKAGE|13 Videos

  • REDOX REACTIONS

    DINESH PUBLICATION|Exercise Reasoning Type Questions|4 Videos

Similar Questions

Explore conceptually related problems

For a first order reaction, the half-life period is

Derive an expression for the relation between half life and rate constant for first order reaction. The half life period for first order reaction is 1.7 hrs. How long will it take for 20% of the reactant to disappear?

For first order reaction, the half life is dependent of :

DINESH PUBLICATION-RATES OF REACTIONS AND CHEMICAL KINETICS-Revision Question
  1. The hydrolysis of ester in alkaline medium is a

    Text Solution

    |

  2. The conversion of A rarr B follows second-order kinetics. Doubling the...

    Text Solution

    |

  3. The rate constant for a first order reaction whose half life is 480 se...

    Text Solution

    |

  4. Select the law that corresponds to data shown for the following reacti...

    Text Solution

    |

  5. The reaction 2H(2)O(2) rarr 2H(2)O+O(2) is r=k[H(2)O(2)]

    Text Solution

    |

  6. A chemical reaction has catalyst X. Hence X

    Text Solution

    |

  7. The raction 2FeCl(3) + SnCl(2) rarr 2FeCl(2) + SnCl(4) is an example ...

    Text Solution

    |

  8. The phenomenon of emission of visible light as a result of chemical ch...

    Text Solution

    |

  9. Rate constant in case of first order reaction is

    Text Solution

    |

  10. For a zero order reaction A rarr B, t(1//2) is (k is rate constant)

    Text Solution

    |

  11. For a chemical reaction A rarr B, it is found that the rate of reacti...

    Text Solution

    |

  12. For the first order reaction with rate contant k, which expression giv...

    Text Solution

    |

  13. The rate constant is given by the equation k = P.Ze^(-E//RT). Which fa...

    Text Solution

    |

  14. For a reaction of type A +B rarr products it is observed that doubling...

    Text Solution

    |

  15. For the reaction A rarr B, the rate law expression is rate =k[A]. Whic...

    Text Solution

    |

  16. The reaction N(2)O(5) (in C Cl(4) solution) rarr 2NO(2) (solution) +...

    Text Solution

    |

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

    Text Solution

    |

  18. Th Arrhenius equation expressing the effect of temperature on the rate...

    Text Solution

    |

  19. The first order rate constant for the decomposition of N(2)O(5) is 6.2...

    Text Solution

    |

  20. A reaction is 50 % complete in 2 hours and 75 % complete in 4 hours th...

    Text Solution

    |