Question

What is activation energy ?

Answer 1

Activation energy, in chemistry, the minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.

Answer 2

the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.


In chemistry and physics, activation energy is the energy which must be available to a chemical or nuclear[1] system with potential reactants to result in: a chemical reaction[2], nuclear reaction[3], or various other physical phenomena.[4][5]