MHT CET Chemistry question

On increasing temperature of the reacting system by 10 degrees the rate of reaction almost doubles. The most appropriate reasons for this is

(A)Collision frequency increases
(B)Activation energy decreases by increase in temperature
(C)The fraction of molecules having energy equal to threshold energy or more increaseCorrect
(D)The value of threshold energy decreases

Answer: (C)

Solution

A 10-degree rise increases the collision frequency only by about 1-2 percent but sharply increases the fraction of molecules with energy equal to or

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Question ID VK-068766