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Enzymes in rate law

Posted: Wed Mar 14, 2018 4:29 pm
by Deborah Cheng 1F
I believe Dr. Lavelle mentioned this in class but I just wanted to clarify, catalysts can be in the rate law?

Re: Enzymes in rate law

Posted: Wed Mar 14, 2018 4:30 pm
by Gianna Apoderado 1B
Yes, because the concentration of catalysts affect the reaction rate, the higher the concentration, the faster the reaction!

Re: Enzymes in rate law

Posted: Wed Mar 14, 2018 4:34 pm
by skalvakota2H
Catalysts can be included in the rate law. This occurs when the catalyst is involved in the rate-determining step, since the reactants of the rate-determining step is what decides the overall rate law. However, if the catalyst is involved in a different step, then it will not appear in the rate law.

Re: Enzymes in rate law

Posted: Wed Mar 14, 2018 5:13 pm
by Deborah Cheng 1F
I see, so if the catalysts are not necessarily always going to be in the rate determining step and therefore will not always show up in the rate law?

Re: Enzymes in rate law

Posted: Thu Mar 15, 2018 9:48 am
by Wenxin Fan 1J
In most cases, catalysts will not be included in the rate law since it is not usually involved in the slow, rate determining step.