# Does a catalyst change the thermodynamics of a chemical reaction?

Sep 3, 2017

No...........

#### Explanation:

Compare the reaction profile of reactions with high and large activation energies.....

The catalyzed reaction is FASTER than the uncatalyzed reaction given that a greater proportion of the reactant molecules have the requisite activation energy. Of course, we speak of the KINETIC profile of the reaction. The thermodynamics of the reaction are necessarily unchanged and constant. But the higher the ${E}_{\text{activation}}$, the SLOWER the reaction.