Guest

On increasing temperature, activation energy of a reaction decreases, why?

On increasing temperature, activation energy of a reaction decreases, why?

Grade:upto college level

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
we have arrhenius relation between activation energy and the temperature as
k=Ae^-Ea/RT
K is the rate constant,Ea is the activation energy and T is the temperature.
On increasing temperature, activation energy of a reaction remains same. It is the rate constant whose value increases on increasing temperature.
This happens because, on increasing temperature; the fraction of molecules which collide with energies greater than Ea (activation energy) increase, due to which the rate of the reaction increases.Thus, activation energy doesnot decrease with the increase in temperature.

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free