Question

The rate of reaction increases by 2.5 times when the temperature is raised from 300k to 310k .if k is the rate constant at 300k ,then the rate constant at 300k will be equal to

Answer 1

Answer: The rate constant at 300K will be k.

Explanation: Rate constant is the proportionality factor which describe the rate law.

For a general equation:

$aA+bB\rightarrow cC+dD$

Expression for rate law:

$R=k[A]^a[B]^b$

where, k = rate constant

This rate constant is directly dependent on the temperature of the solution.

$k\propto Temperature$

Rate constant increases as the temperature increases, but it rapidly falls at higher temperatures.

So, the rate constant at 300K will be 'k' as given in the question.