Home
Class 12
CHEMISTRY
For a reaction the activation energy is ...

For a reaction the activation energy is zero. What is the value of rate constant at `300K`. `["Given"k_(280K)=1.6xx10^(6)s^(-1),R=8.314J "mol"^(-1)K^(-1)]`

A

`2.08xx10^(-3)`

B

`2.08xx10^(-2)`

C

`6.93xx10^(-3)`

D

`6.93xx10^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Objective Exercise - 3 (Previous NEET/AIPMT Questions)|32 Videos

  • CHEMICAL KINETICS

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

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Objective Exercise - 1|124 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

What is the value of gas constant R in J mol^(-1 ) K^(-1) ?

What is the ratio of the rate constants K_(1) and K_(2) ?

What is the activation energy for a reaction if its rate oubles when the temperature is aised from 20^(@)C to 35^(@)C ? (R=8.314 J "mol"^(-1)K^(-1))

What is the numerical value of the gas constant R- in J mol^(-1) K^(-1) ?

Identify the reaction order from each of the following rate constants. i) k=2.3 xx10^(5) L mol ^(-1) s ^(-1) ii) K=3 xx10^(-4)s^(-1)

The activation energy of a reaction is 58.3 kJ/mole. The ratio of the rate constnat at 205 K and 300 K is about (R=8.31 Jk^(-1)"mole"^(-1) )(Antilog 0.1667=1.468)

AAKASH SERIES-CHEMICAL KINETICS-Objective Exercise - 2
  1. The rate of reaction Ato products is 10mole/lit/min at time (t(1))=2"m...

    Text Solution

    |

  2. 3A to 2B , rate of reaction +(d[B])/(dt) is equal to

    Text Solution

    |

  3. For a reaction the activation energy is zero. What is the value of rat...

    Text Solution

    |

  4. The temperature coefficient of a reaction is 2.5. If its rate constant...

    Text Solution

    |

  5. In the equilibrium reaction A+BhArrC+D, the activation energy for the ...

    Text Solution

    |

  6. For a first order process, (-Ea)/(RT) value is -23.03, then value of ...

    Text Solution

    |

  7. For producing the effective collisions the colliding molecules must ha...

    Text Solution

    |

  8. K, A & Ea of a process at 25^@C respectively are 5 xx 10^(-4) s^(-1) ...

    Text Solution

    |

  9. The half life of a first order reaction is 100 seconds at 280 K. If th...

    Text Solution

    |

  10. The temperature coefficient of a reaction is 2. When the temperature i...

    Text Solution

    |

  11. For a chemical reaction Y(2)+2Zto Product rate controlling step is Y+1...

    Text Solution

    |

  12. In a reaction AtoB when the concentration of reaction is made 8 times,...

    Text Solution

    |

  13. The rate of reaction A+2Bto Products is given by -(d[A])/(dt)=k[A][B]^...

    Text Solution

    |

  14. For the reaction 2A+Bto Products, it is found that doubling the conce...

    Text Solution

    |

  15. The initial rates for gaseous reaction A+3BtoAB(3) are given below [...

    Text Solution

    |

  16. The half life of a first order reaction is 100 seconds. What is the ti...

    Text Solution

    |

  17. For the reaction 2N(2)O(5)to4NO(2)+O(2), rate and rate constant are 1....

    Text Solution

    |

  18. Decomposition of NH3 on Pt surface follows zero order kinetics. If the...

    Text Solution

    |

  19. 3/4 th of first order reaction was completed in 32 min 15/16 the part ...

    Text Solution

    |

  20. Initial concentration of the reactant is 1.0 M. The concentration beco...

    Text Solution

    |