Define activation energy. Activation energy is Define activation energy. the energy barrier that must be surmounted in order for the reactants to transform into products. the energy difference between the reactants and the products. the energy released by the reactants while transforming into products. the energy released by the products while transforming into reactant

the energy barrier that must be surmounted in order for the reactants to transform into products.

Explanation:

When we draw a reaction profile, there is always a hump that is found between the reactants and products. This hump is called the activation energy.

The activation energy of a reaction stands as a sort of barrier between reactants and products which must be surmounted before the reactants are converted into products.

Only reactants that possess the activation energy can be converted from reactants to products.