Home
Class 12
CHEMISTRY
Rate constant of a reaction can be expre...

Rate constant of a reaction can be expressed by Arrhenius equation as `K=Ae(-E//R)`. In this equation, E represents

A

The energy above which not all the colliding molecules will react

B

The energy below which colliding molecules will not reacts

C

The total energy of the reacting molecules at temperature T

D

The fraction of molecules which energy greater than the activation energy of the reaction

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 1 (Collision theory)|14 Videos

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 1 (Order, molecularity and half life)|43 Videos

  • CHEMICAL KINETICS

    AAKASH SERIES|Exercise Subjective Exercise -4 (Numerical Problems)|7 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

The temperature dependence on rate constant (k) of a chemical reaction is written in terms of Arrhenius equation, k=A.e^(-E^(0)//RT) . Activation energy (E^(0)) of the reaction can be calculated by plotting

Arrhenius equation may be represented as

The equation 2x=6 can further be expressed as

Which of the following is correct for Arrhenilus equation k=Ae^(-E_(a)//RT)

a) How can you express in a chemical equation if the gas involved in the reaction?

Arrhenius studied the effect of temperature on the rate of a reaction and postulated that rate constant varies with temperature exponentially as k=Ae^(-E_(a)//RT) . For most of the reactions it was found that the temperature coefficient of the reaction lies between 2 to 3. The method is generally used for finding the activation energy of a reaction. Keeping temperature constant, the effect of catalyst on the activation energy has also been studied by studying how much the rate of reaction changes in the presence of catalyst. In most of the cases, it is observed that catalyst lowers the activationenergy barrier and increases the rate of reaction. The pre-exponential factor in the Arrhenius equation of a second order reaction has the units

Write the Arrhenius equation for the rate constant (k) of a reaction.

The rate constant K_(1) of a reaction is found to be double that of rate constant K_(2) of another reaction. The relationship between corresponding activation energies of the two reactions E_(1) and E_(2) can be represented as

AAKASH SERIES-CHEMICAL KINETICS-OBJECTIVE EXERCISE - 1 (Rate and factors influencing rate)
  1. For a reaction(K((1+10)))/(K((1)))=x. When temperature is increased fr...

    Text Solution

    |

  2. Increase of temperature will increase the reaction rate due to

    Text Solution

    |

  3. The rate constants of a reaction at 300K and 280 K respectively are K(...

    Text Solution

    |

  4. The rate constant K(1) of a reaction is found to be double that of ra...

    Text Solution

    |

  5. The Arrhenius equation expressing the effect of temperature on the rat...

    Text Solution

    |

  6. Activation energy depends on

    Text Solution

    |

  7. A catalyst in a chemical reaction does not change

    Text Solution

    |

  8. In general the rate of a given reaction can be increased by all the fa...

    Text Solution

    |

  9. The effect of temperature on a reaction rate for whilch Ea is zero is ...

    Text Solution

    |

  10. (A) The rate law of a reaction cannot be predicted from its balanced c...

    Text Solution

    |

  11. In the graph drawn between log K and 1/T, intercept equalst o

    Text Solution

    |

  12. In the Arrhenius equation equation,the Boltzmann factor e^(Ea//RT) rep...

    Text Solution

    |

  13. Activation energies for different reactions are given below (a) A t...

    Text Solution

    |

  14. Which of the following parameters of a chemical readtion are increased...

    Text Solution

    |

  15. For an exothermic chemical process occurring in two steps as i) A+Bt...

    Text Solution

    |

  16. Which of the following influence the rate of reaction a. Nature of r...

    Text Solution

    |

  17. Which of the following does not affect the rate of reaction?

    Text Solution

    |

  18. The rate expression gives the relation between rate of reaction and

    Text Solution

    |

  19. Rate constant of a reaction can be expressed by Arrhenius equation as ...

    Text Solution

    |

  20. For N(2)O(5)("in CCl"(4))to2NO(2)+1/2O(2), K=6xx10^(-4)s^(-1) at 350...

    Text Solution

    |