Home
Class 12
CHEMISTRY
A first order decomposition reaction tak...

A first order decomposition reaction takes 40 minutes for 30% decomposition. Calculate its `t_(1//2)` value.

Text Solution

Verified by Experts

The correct Answer is:
`77.86" min"`
`k=(2.303)/(t)log""(a)/(a-x)=(2.303)/(40" min")log""(a)/(a-0.30a)=0.0089" min"^(-1),t_(1//2)=(0.693)/(k)=(0.693)/(0.0089" min"^(-1))=77.86" min."`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    PRADEEP|Exercise CURIOSITY QUESTION|2 Videos

  • CHEMICAL KINETICS

    PRADEEP|Exercise TEST YOUR GRIP (MULTIPLE CHOICE QUESTIONS)|25 Videos

  • CHEMICAL KINETICS

    PRADEEP|Exercise ADVANCED PROBLEMS FOR COMPETITIONS|14 Videos

  • BIOMOLECULES

    PRADEEP|Exercise IMPORTANT QUESTIONS (FOR BOARD EXAMINATION)|25 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    PRADEEP|Exercise IMPORTANT QUESTION FOR BOARD EXAMINATION|30 Videos

Similar Questions

Explore conceptually related problems

A first reaction takes 40 mi n for 30% decomposition. Calculate t_(1//2) .

A first order reaction takes 40 min for 30% decomposition. Calculate t_(1//2) .

A first order reaction takes 40 minutes for 30% decomposition. Calculate its half life period.

(a) A reaction is second order in A and first order in B . (i) Write the differential rate equation. (ii) How is the rate affected on increasing the concentration of A three times? (iii) How is the rate affected when the concentration of both A and B doubled? (b) A first order reaction takes 40 minutes for 30% decomposition. Calculate t_(1//2) for this reaction. (Given log 1.428 = 0.1548)

A first order reaction takes 40 min for 30% decomposition. Calculate t_(1//2) . (Given log 7 =0.845)

A first order reaction takes 40 minutes for 30% decomposition of rectants. Calculate its half life period.

PRADEEP-CHEMICAL KINETICS-PROBLEMS FOR PRACTICE
  1. A first order reaction in 75% complete is 60 minutes. Find the half li...

    Text Solution

    |

  2. In a hydrolysis reaction, 5 g of ethyl acetate is hydroloysed in the p...

    Text Solution

    |

  3. A first order decomposition reaction takes 40 minutes for 30% decompos...

    Text Solution

    |

  4. A first order reaction is 75% completed in 40 minutes. Calculate its t...

    Text Solution

    |

  5. In a particular reduction process, the concentration of a solution tha...

    Text Solution

    |

  6. The following rate data were obtained for the thermal decomposition of...

    Text Solution

    |

  7. The half-life period of a first order reaction is 600 s. What percent ...

    Text Solution

    |

  8. 50% of a reaction is completed in 16 minutes. What fraction of the rea...

    Text Solution

    |

  9. The decomposition of a compound is found to follow the first order rat...

    Text Solution

    |

  10. A first order reaction is 15% complete in 20 minutes. How long will it...

    Text Solution

    |

  11. The rate constant for first order reaction is 60/s. How much time will...

    Text Solution

    |

  12. Rate constant of a first order reaction, A to Product is 0.016" min"^(...

    Text Solution

    |

  13. A first order reaction has a rate constant of 0.0051 min^(-1). If we b...

    Text Solution

    |

  14. A first order reaction has k=1.5xx10^(-6) per second at 240^(@)C. If t...

    Text Solution

    |

  15. The thermal decomposition of formic acid (HCOOH) is a first order reac...

    Text Solution

    |

  16. The rate constant of a first order reaction is 60s^(-1). How much time...

    Text Solution

    |

  17. The rate constant of a first order reaction is 60s^(-1). How much time...

    Text Solution

    |

  18. A first order reaction takes 20 minutes for 25% decomposition. Calcula...

    Text Solution

    |

  19. The following data were obtained during the first order thermal decomp...

    Text Solution

    |

  20. The rate constants of a reaction are 1xx10^(-3)sec^(-1)" and "2xx10^(-...

    Text Solution

    |