Question

how does enzymes lower the activation energy of reaction but do not change free energy of the reaction?

Answer 1

Answer:

Enzymes are known as biological catalyst and work by lowering the activation energy of a reaction. Enzyme lowers the activation energy of reaction but donot change free energy of the reaction.

Enzymes lower the activation energy of a reaction by binding to one of the reactants (substrate) and holding it in a way that lowers the activation energy. Enzymes stabilize the transition states between reactant and product. The catalysts lead to new pathways which don't require as high of an energy of activation in turn speeding up the reaction.