## Determining Catalysts from Diagrams (7E.5)

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

Searra Harding 4I
Posts: 68
Joined: Fri Sep 28, 2018 12:29 am

### Determining Catalysts from Diagrams (7E.5)

In 7E.5 we are given the diagrams for each step. How do we know which molecule is the catalyst for the reaction? Is it the intermediate or reactant in the first step?

Manu Vohra 1L
Posts: 61
Joined: Wed Oct 03, 2018 12:15 am

### Re: Determining Catalysts from Diagrams (7E.5)

A catalyst is a molecule that is used up in a reaction and then re-created. I usually use this fact to help differentiate the catalyst from the intermediate (which is created then consumed by the rxn).

Destiny Diaz 4D
Posts: 51
Joined: Fri Sep 28, 2018 12:28 am

### Re: Determining Catalysts from Diagrams (7E.5)

The catalyst is used up first then later recreated while an intermediate is first created/produced then used up and not in the final product and this is how you would tell the difference I think.

Rhea Churi 4K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

### Re: Determining Catalysts from Diagrams (7E.5)

A catalyst is used up in the beginning of the reaction and then recreated.
An intermediate is created and then used up.