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

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

A

50min

B

46 min

C

48 min

D

49 min

Text Solution

Verified by Experts

The correct Answer is:
C
`k=(2.303)/(t)log((a)/(a-x))`
`k=(2.303)/(32)log((100)/(1))implies(2.303)/(16)`
`t=(2.303 xx 16)/(2.303) log((100)/(0.1))=48 min`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    DISHA PUBLICATION|Exercise EXERCISE 1 : CONCEPT BUILDER (TOPICWISE)(TOPIC 3 : Theories of Rate of Reaction)|17 Videos

  • CHEMICAL KINETICS

    DISHA PUBLICATION|Exercise EXERCISE 2 : CONCEPT APPLICATOR|30 Videos

  • CHEMICAL KINETICS

    DISHA PUBLICATION|Exercise EXERCISE 1 : CONCEPT BUILDER (TOPICWISE) (TOPIC 1: Rate of Reaction, Rate Laws and Rate Constant)|11 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DISHA PUBLICATION|Exercise EXERCISE-2: CONCEPT APPLICATOR|30 Videos

  • CHEMISTRY IN EVERDAY LIFE

    DISHA PUBLICATION|Exercise Exercise|88 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 ?

DISHA PUBLICATION-CHEMICAL KINETICS -EXERCISE 1 : CONCEPT BUILDER (TOPICWISE) (TOPIC 2: Order of Reaction and Half Life Period)
  1. In the presence of acid, the initial concentration of cane sugar was r...

    Text Solution

    |

  2. For the reaction 3A(g)overset(k)toB(g)+C(g) k is 10^(-4)L//mol.min. ...

    Text Solution

    |

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

    Text Solution

    |

  4. Which of the following represent the expression for (3)/(4)th life of ...

    Text Solution

    |

  5. A hypothetical reaction A(2) + B(2) rarr 2AB follows the mechanism as ...

    Text Solution

    |

  6. The time taken for 90% of a first order reaction to be completed is a...

    Text Solution

    |

  7. A substance 'A' decomposes by a first order reaction starting initial...

    Text Solution

    |

  8. Half life of a first order reaction is 4s and the initial concentrati...

    Text Solution

    |

  9. 3A to B+C, it would be a zero order reaction when

    Text Solution

    |

  10. The reaction A toB follows first order reaction. The time taken for 0....

    Text Solution

    |

  11. For a first-order reaction A rarr B the reaction rate at reactant conc...

    Text Solution

    |

  12. For a reaction A + 2B rarr C, rate is given by R = K [A] [B]^(2). The ...

    Text Solution

    |

  13. In a first order reaction, the concentration of the reactant, decrease...

    Text Solution

    |

  14. In a reaction, when the concentration of reactant is increased two ti...

    Text Solution

    |

  15. The rate constant of a first order reaction is 6.9xx10^(-3)s^(-1). How...

    Text Solution

    |

  16. The plot that represents the zero order reaction is:

    Text Solution

    |

  17. For a chemical reaction t(1 // 2) is 2.5 hours at room temperature. H...

    Text Solution

    |

  18. Point out the wrong statement: For a first order reaction

    Text Solution

    |

  19. For a reaction (d x)/(d t) = K[H^(+)]^(n). If pH of reaction medium ch...

    Text Solution

    |

  20. Ethylene is produced by C(4)H(8) overset(Delta)to 2C(2)H(4)  The rat...

    Text Solution

    |