Home
Class 12
CHEMISTRY
The rate of a first order reaction is 1....

The rate of a first order reaction is `1.5xx10^(-2)` mol `L^(-1) "min"^(-1)` at 0.5 M concentration of the reactant . The half life of the reaction is :

A

`23.1 min`

B

`8.73 ` min

C

`7.53 ` min

D

`0.383 `min

Text Solution

Verified by Experts

The correct Answer is:
A
( B) Rate =k [C]
`k= ("Rate")/([C])`
`=(1.5xx10^(-2))/(0.5) `
`3xx10^(-2)`
`t_(1//2)= (0.693)/(3xx10^(-2))`
= 23.1 min
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise Multiple Choice Questions ( Effect of Temperature Catalyst and Radiation on Rate of Reaction )|13 Videos

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise Multiple Choice Questions (Level-II)|50 Videos

  • CHEMICAL KINETICS

    MODERN PUBLICATION|Exercise Multiple Choice Questions ( Order and Molecularity of Reactions )|21 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    MODERN PUBLICATION|Exercise Recent Examination Questions|17 Videos

  • CHEMISTRY IN EVERY DAY LIFE

    MODERN PUBLICATION|Exercise Recent Examination Questions|4 Videos

Similar Questions

Explore conceptually related problems

The rate of a first order reaction is 0.69xx10^(-2) min^(-1) and the initial concentration is 0.5 mol L^(-1) . The half life period is

The rate of a first order reaction : R rarr P is 7.5xx10^(-4) mol L^(-1) "s"^(-1) . The rate concentration of R is 0.5 mol L^(-1) . The rate constant is :

The rate for a first order reaction is 0.6932 xx 10^(-2) mol " "L^(-1) and the initial concentration of the reactant is 1M, t_(1//2) is equal to

The rate for the first order reaction is 0.0069 mol L^(-1) min^(-1) and the initial concentration is 0.2 mol L^(-1) . The half life period is

The rate of a first order reaction is 1.8xx10^(-3) "mol L"^(-1) when the initial concentration is 0.3 mol L^(-1) . The rate constant in the units of second is :

The rate of a first order reaction has been found to be 2.45xx10^(-6) "mol L"^(-1) s^(-1) at concentration C_(1) . The value of C_(1) is (rate constant = 3.5xx10^(-5) ) :

For a chemical raction AtoB the rate of the reaction is 2xx10^(-3) mol dm^(-3)s^(-1) , when the initial concentration is 0.05 mol dm^(-3) . The rate of the same reaction is 1.6xx10^(-2) mol dm^(-3)s^(-1) when the initial concentration is 0.1 mol dm^(-3) . The order of the reaction is

The initial rate of a first order reaction is 5.2 xx 10^(-6)" mol.lit"^(-1).s^(-1) at 298 K. When the initial concentration of reactant is 2.6xx10^(-3)" mol.lit"^(-1) , calculate the first order rate constant of the reaction at the same temperature.

The rate constant of a reaction is 1.2xx10^(-5) "mol"^(-2) "litre"^(2) s^(-1) the order of the reaction is :

MODERN PUBLICATION-CHEMICAL KINETICS -Multiple Choice Questions ( Measuring Order of a Reaction : Integrated rate equation half life period )
  1. The rate constant for a fist order reaction is k = 7xx10^(-4)s^(-1) .T...

    Text Solution

    |

  2. The following rate date were obtained at 313 K for the reaction : 2A...

    Text Solution

    |

  3. The half life period of a reaction is 100 min . In 400 min the intitia...

    Text Solution

    |

  4. A radioactive substance is reduced to 1/8 of its original concentratio...

    Text Solution

    |

  5. The rate for the first order reaction is 0.0069 mol L^(-1) min^(-1) an...

    Text Solution

    |

  6. The half life period of the reaction : N(2) O(5) rarr 2NO(2) +(1)/(2...

    Text Solution

    |

  7. If the initial concentration of reactants in a certain reaction is dou...

    Text Solution

    |

  8. The conversion of A to B follows second order kinetics. Doubling the c...

    Text Solution

    |

  9. For an nth order reaction the half life period t(1//2) is proportional...

    Text Solution

    |

  10. The rate of a first order reaction is 1.5xx10^(-2) mol L^(-1) "min"^(-...

    Text Solution

    |

  11. In a first order reaction ArarrB if k is rate constant and initial co...

    Text Solution

    |

  12. The half life of a reaction is inversely proportionaly to the square o...

    Text Solution

    |

  13. Half the period of a first order reaction is 1386 seconds . The specif...

    Text Solution

    |

  14. The rate law for reaction between the substances A and B is given by :...

    Text Solution

    |

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

    Text Solution

    |

  16. The rate law for the chemical reaction : 2NO(2)Clrarr 2NO(2)+Cl(2) ...

    Text Solution

    |

  17. For a zero order reaction linear plot was obtained for [A] vs t. The s...

    Text Solution

    |

  18. The reaction : X rarr Product follows first order kinetics . In 4...

    Text Solution

    |

  19. The rate constant for a first order reaction is 60 s^(-1) . The time r...

    Text Solution

    |

  20. If the initial concentration of reactants in a certain reaction is dou...

    Text Solution

    |