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Catalysts in Rate Law

Posted: Thu Mar 14, 2019 11:03 pm
by Jacob Bershatski 4C
For a given reaction mechanism, can catalysts be included in the rate law?

Re: Catalysts in Rate Law

Posted: Thu Mar 14, 2019 11:05 pm
by EllerySchlingmann1E
Catalysts can be included in the rate law, just intermediates cannot.

Re: Catalysts in Rate Law

Posted: Thu Mar 14, 2019 11:06 pm
by Kathryn 1F
Yes! I'm pretty sure, because it would be hard to cancel them out due to intermdiates.

for eg, take
A+catalyst-->B (fast)
B-->C + catalyst (slow)

you could cancel out for B, but then your expression would be in terms of the catalyst

Re: Catalysts in Rate Law

Posted: Thu Mar 14, 2019 11:08 pm
by Rhea Churi 4K
Yes, catalysts can be included in the rate law.

Re: Catalysts in Rate Law

Posted: Thu Mar 14, 2019 11:12 pm
by Yvonne Du
I asked my TA today, he said catalysts can be included in elementary step rate laws, but not the overall?

Re: Catalysts in Rate Law

Posted: Fri Mar 15, 2019 2:03 am
by Jonny Schindler 1A
So does an increased concentration of an aqueous catalyst increase the rate of the reaction?