Home
Class 12
CHEMISTRY
In presence of a catalyst, the activatio...

In presence of a catalyst, the activation energy is lowered by 3 kcal at `27^@C`. Hence, the rate of reaction will increase by:

A

32 times

B

243 times

C

2 times

D

148 times

Text Solution

Verified by Experts

The correct Answer is:
D

148 times
Promotional Banner

Similar Questions

Explore conceptually related problems

Can a reaction have zero activation energy?

Can a reaction have negative activation energy?

The activation energy of a reaction is 24.0 kcal mol^(-1) at 27^(@)C and the presence of catalyst changes its activation energy to one-fourth at the same temperature. The approximate ratio of rate in the presence of catalyst to rate in the absence of catalyst will be (use R = 2 cal mol^(-1) K^(-1) ).

A catalyst lowered the activation energy by 25 kJ mol^(-1) at 25^(@)C . By how many times will the rate grow?

The activation energy of a reaction is zero. The rate constant of this reaction

The energy of activation for a reaction is 100 (kJ) mol^(-1) . Presence of a catalyst lowers the energy of activation by 75 %. What will be the effect on the rate of reaction at (20^oC) , other things being equal.

The reaction A rarr X is a first order reaction which takes place in a vessel with initial concentration of A as 10 M. The rate constant for this reaction is 4.16 h^(-1) . In the presence of a catalyst, the reaction A rarr Y follows second-order kinetics and the rate constant is 0.2 min^(-1) M^(-1) . What should be the initial concentration of A in the presence of catalyst so that the value of t_(1//2) for both the reactions is the same?