Q. The reason for almost doubling the rate of reaction on increasing the temperature of the reaction system by $10℃$ is
A) The value of threshold energy increases
B) Collision frequency increases
C) The fraction of the molecules having energy equal to threshold energy increases
D) Activation energy decreases
Explanation
(b)
On increasing the temperature the kinetic energy of the reacting molecules increases and hence, number of collisions increases. So, the rate of reaction will also be increased.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.