Home
Class 12
CHEMISTRY
In a first - order reaction A to B, if K...

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

A

`("In"2)/(K)`

B

`("In"2)/(Ksqrt(0.5))`

C

`(log_(10)2)/(K)`

D

`(0.693)/(0.5K)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Objective Exercise - 4 (Assertion (A) & Reason (R) Type Questions)|44 Videos
  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Objective Exercise - 2|93 Videos
  • CHEMICAL KINETCS

    AAKASH SERIES|Exercise EXERCISE - 3.2|45 Videos
  • CHEMICAL THERMODYNAMICS

    AAKASH SERIES|Exercise Additional Practice Exercise|54 Videos

Similar Questions

Explore conceptually related problems

When initial concentration of the reactant is doubled, the half-life period of a zero order reaction

For a first order reaction with half life of 150 seconds, the time taken for the concentration of the reactant to fall from M/10 to M/100 will be approximately

The rate constant for a first order reaction is 60 s^(-1). How much time will it take to reduce the initial concentration of the reactant to its 1//6^(th) value ?

99% of a 1st order reaction completed in 2.303 minutes. What is the rate constant and half life of the reaction

In an experiment the half time is found to be the same with any initial concentration of the reactant. What is the order ?

A reaction is second order with respect to a reactant. How is the rate of reaction is affected if the concentration of the reactant is i) doubled ii) reduced to half

AAKASH SERIES-CHEMICAL KINETICS-Objective Exercise - 3 (Previous NEET/AIPMT Questions)
  1. In the equation N(2)+3H(2) hArr 2NH(3) the equality realationship betw...

    Text Solution

    |

  2. The reaction obey 1 order with respect to H(2) and Icl both H(2(g))+...

    Text Solution

    |

  3. In a first - order reaction A to B, if K is the rate constant and init...

    Text Solution

    |

  4. If 60% of a first order reaction was completed in 60 min, 50% of the s...

    Text Solution

    |

  5. The rate constant K(1) and K(2) for two different reactions are are 10...

    Text Solution

    |

  6. The bromination of acetone that occurs in acid solution is represented...

    Text Solution

    |

  7. In the reaction BrO(3).^(-)(aq)+5Br^(-)(aq)+6H^(+) to 3Br(2)(l)+3H(2)O...

    Text Solution

    |

  8. For the reaction , N(2)+3H(2) to 2NH(3), "if" (d[NH(3)])/(dt)=2xx10^(-...

    Text Solution

    |

  9. For the reaction A+B products, it is observed that (a) On doubling t...

    Text Solution

    |

  10. Half-life period of a first - order reaction is 1386 seconds. The spec...

    Text Solution

    |

  11. For an endothermic reaction energy of activation is E(a) and enthalpy ...

    Text Solution

    |

  12. For the reaction N(2)O(5)(g) to 2NO(2)(g)+(1)/(2)O(2)(g) the rate ...

    Text Solution

    |

  13. The rate of reaction : 2NO+Cl(2) to 2NOCl is given by the rate equat...

    Text Solution

    |

  14. During the kinetic study of the reaction 2A+B to C+D following results...

    Text Solution

    |

  15. Which of the following statements for the order of a reaction is incor...

    Text Solution

    |

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

    Text Solution

    |

  17. Activation energy (E(a)) and rate constants (k(1) "and" k(2)) of a che...

    Text Solution

    |

  18. In a zero-order reaction for every 10^(@) rise of temperature, the rat...

    Text Solution

    |

  19. In a reaction, A+B to Product, rate is doubled when the concentration...

    Text Solution

    |

  20. What is the activation energy for a reaction if its rate oubles when t...

    Text Solution

    |