question_answer

  State the role of activated complex in a reaction and state its relation with activation energy.                      2

Answer:

                    When reactants changes into products, they have to cross the energy barrier.                                                   When the reactant absorbs energy, their old bonds are loosened and new bonds start forming between them. This highly unstable transition state between reactants and products is called activated complex.      1                                                                                Activation energy = Energy of activated complex - Average energy of reactants