Home
Class 12
CHEMISTRY
The rate constant is given by the equati...

The rate constant is given by the equation `k = P.Ze^(-E_(a)//RT)`. Which factor should register a decrease for the reaction to proceed more rapidly?

A

T

B

Z

C

A

D

Ea

Text Solution

Verified by Experts

The correct Answer is:
D

Lower is energy of activation , faster will be reaction .
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL KINETICS

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|50 Videos
  • BIOMOLECULES

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|40 Videos
  • CHEMICAL THERMODYNAMICS AND ENERGETICS

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS (TEST YOUR GRASP)|50 Videos

Similar Questions

Explore conceptually related problems

The rate constant is given by the equation k = P.Ze^(-E//RT) . Which factor should register a decrease for the reaction to proceed more rapidly ?

The rate constant is given by the equation K=Ae^(-E_(a)//RT) which factor should register a decrease for the reaction to proceed more rapidly:

The rate constant is given by Arrhenius equation. k=Ae^(-E_(a)//RT) Calculate the ratio of the catalysed and uncatalysed rate constants at 25^(@)C if the energy of activation of a catalysed raction is 162 kJ and for the uncatalysed reaction the value is 350 kJ

In Arrhenius equation k = Ae^(-E_(a)//RT)) , A is the value of the rate constant

In the Arrhenius equation: k = A exp(-E_(a)//RT) , the rate constant

A colliison between reactant molecules must occur with a certain minimum energy before it is effective in yielding Product molecules. This minimum energy is called activation energy E_(a) Large the value of activation energy, smaller the value of rate constant k . Larger is the value of activation energy, greater is the effect of temperature rise on rate constant k . E_(f) = Activation energy of forward reaction E_(b) = Activation energy of backward reaction Delta H = E_(f) - E_(b) E_(f) = threshold energy The rate constant of a certain reaction is given by k = Ae^(-E_(a)//RT) (where A = Arrhenius constant). Which factor should be lowered so that the rate of reaction may increase?

MARVEL PUBLICATION-CHEMICAL KINETICS-TEST YOUR GRASP
  1. The rate constant is given by the equation k = P.Ze^(-E(a)//RT). Which...

    Text Solution

    |

  2. Chemical kinetics, a branch of physical chemistry, deals with :

    Text Solution

    |

  3. The rate of chemical reaction

    Text Solution

    |

  4. For the hypothetical reaction 2A rarr3C , the reaction rate r in term...

    Text Solution

    |

  5. The term -dx//dt in the rate expresison refers to the

    Text Solution

    |

  6. In general, with every 10^(@)C rise in temperature, the rate of reacti...

    Text Solution

    |

  7. The activation energy of a reaction is zero. The rate constant of the ...

    Text Solution

    |

  8. The activation energy for a hypothetical reaction A rarr X is 12.49 kc...

    Text Solution

    |

  9. The rate constant of a reaction depends on

    Text Solution

    |

  10. Rate expression of a chemical change is -(dx)/(dt)=k[A]^(2)[B]^(1)[C]^...

    Text Solution

    |

  11. If the rate of reaction between A and B is given by rate =k[A][B]^(2) ...

    Text Solution

    |

  12. The rate law for the reaction RCl + NaOH(aq) rarr ROH + NaCl is give...

    Text Solution

    |

  13. A zero order reactio is one:

    Text Solution

    |

  14. For which of the following reactions, the units of rate constant and r...

    Text Solution

    |

  15. For a zero order reaction :

    Text Solution

    |

  16. If the concentration is expressed in moles per liter, the unit of the ...

    Text Solution

    |

  17. Which one of the following formula represents a first-order reaction?

    Text Solution

    |

  18. Which of the following is correct plot for effect of catalyst on ...

    Text Solution

    |

  19. The specific rate constant of a first order reaction depends on the

    Text Solution

    |

  20. The inversion of cane sugar is represented by C(12)H(22)O(11) + H(2)...

    Text Solution

    |

  21. Which of the following statement regarding the molecularity of a react...

    Text Solution

    |