Home
Class 12
CHEMISTRY
In a first order reaction, A rarrB, if K...

In a first order reaction, `A rarrB`, if K is rate constant and initial concentration of the reactant A is 0.7M then half - life is

A

`(In2)/K`

B

`(0.693)/(0.5K)`

C

`(log2)/K`

D

`(log2)/(Ksqrt(0.5))`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION D : Assertion - Reason Type Questions)|15 Videos

  • CHEMICAL KINETICS

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION B : Objective Type Questions)|20 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    AAKASH INSTITUTE|Exercise Assignment Section J (Aakash Challengers Questions)|10 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    AAKASH INSTITUTE|Exercise Assignment ( SECTION - A)|45 Videos

Similar Questions

Explore conceptually related problems

In a first-order reaction A rarr B , if K is the rate constant and initial concentration of the reactant is 0.5 M , then half-life is

In a first order reaction A to B , if k is rate constant and initial concentration o f the reactant A is 0.5 M then the half-life is

In a first order reaction A to B, if k is rate constant and initial concentration of the reactant A is 2 M then the half life of the reaction is:

AAKASH INSTITUTE-CHEMICAL KINETICS-ASSIGNMENT (SECTION C : Previous Year Questions)
  1. The rate constant k(1) and k(2) for two different reactions are 10^(16...

    Text Solution

    |

  2. The bromination of acetone that occurs in acid solution is represente...

    Text Solution

    |

  3. In a first order reaction, A rarrB, if K is rate constant and initial ...

    Text Solution

    |

  4. The reaction obey I order with respect to H(2) and ICl both. H(2) (g...

    Text Solution

    |

  5. If 60% of a first order reaction was completed in 60 minutes, 50% of t...

    Text Solution

    |

  6. for the reaction, 2A + B rarr 3C + D, which of the following does not ...

    Text Solution

    |

  7. For this reaction N(2(g))+3H(2(g))to2NH(3(g)) The relation be...

    Text Solution

    |

  8. For a first order reaction A rarrB , the reaction rate at reactant con...

    Text Solution

    |

  9. A nuclide of an alkaine earth metal undergoes radioactive deacy by em...

    Text Solution

    |

  10. The rate of reaction between two A and B decreases by factor 4 if the ...

    Text Solution

    |

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

    Text Solution

    |

  12. Activation energy (Ea) and rate constants (k1 and k2) of a chemical re...

    Text Solution

    |

  13. The half life of 2g sample of radioactive nuclide 'X' is 15 min. The h...

    Text Solution

    |

  14. The rate of reaction. 2N(2)O(5) to 4NO(2) + O(2) can be written in...

    Text Solution

    |

  15. For the following reaction C6H(12)(aq)+H2(g)hArrC6H(14)O6(aq) Which...

    Text Solution

    |

  16. A chemical reaction proceeds into the following steps Step I, 2A hAr...

    Text Solution

    |

  17. The data for the reaction: A + B overset(k)rarr C. |{:("Experiment",...

    Text Solution

    |

  18. Half - life for radioactive .^(14)C is 5760 years. In how many years 2...

    Text Solution

    |

  19. A chemical reaction has catalyst X. Hence X

    Text Solution

    |

  20. The given elementary reaction 2FeCl3+SnCl2rarr2FeCl2+SnCl4 is an examp...

    Text Solution

    |