So the rate constant K is equal to the product of the frequency factor a and e to the power of negative EA divided by RT where r is the gas constant, t is the absolute temperature, EA is our activation energy. So right away, because the activation energy appears in this arrangeous equation, that means changing the activation energy changes the value of K. And so when an enzyme acts on a chemical reaction, it affects the k value. And that makes sense because we know that enzymes do not affect the concentrations of reactants or products. And so if enzymes increase the rate of the reaction and they cannot increase the a value or b, that means they have to increase the k value, the rate constant. So if we look at the radius equation, we see that if we decrease the value of EA. So remember enzymes, they stabilize the energy of the transition state, decreasing the energy of the transition state and that decreases the free energy of activation.