## Catalysts

Arrhenius Equation: $\ln k = - \frac{E_{a}}{RT} + \ln A$

Michelle Dong 1F
Posts: 110
Joined: Fri Sep 29, 2017 7:04 am

### Catalysts

Can catalysts appear in the experimentally determined rate law? If so, just to clarify, intermediates cannot appear in the experimentally determined rate law, but can appear in the calculation of K (equilibrium constant), but catalysts can appear in both the experimentally determined rate law and the calculation of K (equilibrium constant)?

Renee Delamater 2H
Posts: 31
Joined: Wed Nov 16, 2016 3:02 am

### Re: Catalysts

I would also like to know the answer to this question

Ashin_Jose_1H
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

### Re: Catalysts

A catalyst operates by lowering the activation energy of a certain reaction. Therefore, it affects the overall rate of the reaction. It does not, however, affect the equilibrium composition. Both the forward and reverse reactions are accelerated due to the catalyzed path. Therefore the equilibrium constant is unchanged.

Christy Lee 2H
Posts: 73
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

### Re: Catalysts

I believe in can be in the rate law.

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