Home
Class 12
CHEMISTRY
For a given reaction, energy of activati...

For a given reaction, energy of activation for forward reaction `(E_(af)` is 80 kJ `mol^(-1).DeltaH=-40"kJ mol"^(-1)` for the reaction. A catalyst lowers `E_(af)` to 20 kJ `mol^(-1)`. The ratio of energy of activation for reverse reaction before and after addition of catalyst is :

A

`1.0`

B

`0.5`

C

`1.2`

D

`2.0`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • Chemical Kinetics

    MOTION|Exercise Exercise -1 (Mechanism of reaction and theories of reaction rate)|6 Videos
  • Chemical Kinetics

    MOTION|Exercise Exercise -1 (Sequential, parallel & reversible reaction)|7 Videos
  • Chemical Kinetics

    MOTION|Exercise Exercise -1 (Methods to monitor the progress of reaction)|4 Videos
  • CHEMICAL EQUILIBRIUM

    MOTION|Exercise Exercise - 4|20 Videos
  • CLASSROOM PROBLEMS

    MOTION|Exercise Electrochemistry|22 Videos

Similar Questions

Explore conceptually related problems

The activation energy for the forward reaction X rarr Y is 60 kJ mol^(-1) and Delta H is -20 kJ mol^(-1) . The activation energy for the reverse reaction is

In an exothermic reaction A rarr B , the activation energy of the forward reaction is 200 kJ mol^(-1) . The enthalpy of the reaction is 280 kJ mol^(-1) . The activation energy of the reverse reaction B rarr A is

The energies of activation for forward and reverse reaction for A_(2)+B_(2) hArr 2AB are 180 kJ "mol"^(-1) and 200 kJ "mol"^(-1) respectively. The presence of catalyst lowers the activation energy of both (forward and reverse) reactions by 100 kJ "mol"^(-1) . The enthalpy change of the reaction (A_(2) + B_(2) rarr 2 AB) in the presence of catalyst will be (in kJ "mol"^(-1) ):

The energies of activation forward and revers reaction for A_(2)+B_(2)to2AB are 180 kJ mol^(-1) and 200 kJ mol^(-1) respectively. The pressure of a catalyst lowers the activation energy of both (forwar and reverse) reactions by 100 kJ mol^(-1) . The magnitude of enthalpy change of the reaction (A_(2)+B_(2)to2AB) in the presence of catalyst will be (in Kj mol^(-1) ):

For a reaction A rarr B, E_(a) = 10 kJ mol^(-1), DeltaH = 5 kJ mol^(-1) . Thus, potential energy profile for this reaction is: