## catalyst

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

Vuong_2F
Posts: 90
Joined: Sat Sep 14, 2019 12:17 am

### catalyst

how can determine if a species is a catalyst?

Jessica Castellanos
Posts: 102
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

### Re: catalyst

When given a reaction mechanism, the catalyst will be in the reactants side, will be used up, and then produced again by the end, so that in the overall reaction the catalyst isn't used up.

MaggieHan1L
Posts: 100
Joined: Thu Jul 11, 2019 12:17 am

### Re: catalyst

It is present at the beginning and reappears at the end as opposed to an intermediate which forms and disappears during the reaction

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

### Re: catalyst

catalysts are used up and then reformed so they start in the reactants of one reaction and are reformed in the products of another reaction.

Orrin Zhong 4G
Posts: 51
Joined: Sat Jul 20, 2019 12:16 am

### Re: catalyst

A species is a catalyst if it exists at the start of the reaction, then gets used up by the reaction, but gets reformed at the end of the reaction.