Home
Class 12
CHEMISTRY
Find out two-third (2//3) life of a firs...

Find out two-third `(2//3)` life of a first order reaction in which `k=5.48 xx 10^(-14)s^(-1)`

Text Solution

AI Generated Solution

To find the two-third life of a first-order reaction with a rate constant \( k = 5.48 \times 10^{-14} \, s^{-1} \), we can follow these steps: ### Step 1: Understand the Concept of Two-Third Life The two-third life of a reaction refers to the time taken for two-thirds of the initial concentration to react. If we denote the initial concentration as \( A \), then two-thirds of \( A \) is \( \frac{2}{3}A \). Therefore, the remaining concentration after two-thirds has reacted will be \( A - \frac{2}{3}A = \frac{1}{3}A \). ### Step 2: Use the First-Order Kinetics Equation For a first-order reaction, the relationship between concentration and time is given by the equation: \[ ...
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise NCERT Exercise|1 Videos
  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise NCERT in text questions|38 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Unit Test - 1|20 Videos
  • CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS

    DINESH PUBLICATION|Exercise Exercise|507 Videos

Similar Questions

Explore conceptually related problems

Find the two-thirds life (t_(2//3)) of a first order reaction in which k=5.48xx10^(-1) "sec"^(-1) ( log 3 = 0.4771 , log 2 = 0.3010)

How much time is requred for two - third completion of a first order reaction having, K=5.48xx10^(-14)S^(-1) ?

The half life of a first order reaction having rate constant k=1.7xx10^(-5) sec^(-1) is :

(a) For a reaction ABrarrP , the rate law is given by, r=k[A]^(1//2)[B]^(2). What is the order of this reaction? (b) A first order reaction is found to have a rate constant k=5.5xx10^(-14)s^(-1) , Find the half life of the reaction.

What percentage of the initial concentration will react in 5 hours in a first order reaction whose rate constants is 5.78 xx 10^(-5)s^(-1)? .

DINESH PUBLICATION-CHEMICAL KINETICS-Additional Numerical Problems For Practice
  1. Find out two-third (2//3) life of a first order reaction in which k=5....

    Text Solution

    |

  2. The following initial rate data were obtained at 300K for the reaction...

    Text Solution

    |

  3. At elevated temperature, HI decomposes according to the chemical equat...

    Text Solution

    |

  4. The rate lalw for the reaction A + B to C is ("rate")=k[A]^(2)[B] ...

    Text Solution

    |

  5. The following results were obtained in the decomposition of N(2)O(5) i...

    Text Solution

    |

  6. What percentage of the initial concentration will react in 5 hours in ...

    Text Solution

    |

  7. The first order rate constant for the decompoistion of C(2)H(5)I by th...

    Text Solution

    |

  8. At 300K, a certain reaction is 50% complete in 20 minutes. At 350K, th...

    Text Solution

    |

  9. If the half life period of a first order reaction is 2.31 xx 10^(3) mi...

    Text Solution

    |

  10. A reaction is 50% complete in 2 hours and 75% complete in 4 hours. Wha...

    Text Solution

    |

  11. The half life period of a first order reaction is 60 min. What percent...

    Text Solution

    |

  12. A first order reaction has k=1.5 xx 10^(-6) s^(-1) at 200^(@)C. If the...

    Text Solution

    |

  13. The thermal decomposition of a compound is of first order. If 50% of a...

    Text Solution

    |

  14. A first order reaction is 40% completed in 50 minutes. What is the tim...

    Text Solution

    |

  15. Calcualte the time required for the initial concentration of 2.0 mol//...

    Text Solution

    |

  16. Half life period for a reaction A to Products at 298 K is 3.33 hours. ...

    Text Solution

    |

  17. A substance having a half-life period of 30 min decomposes according t...

    Text Solution

    |