catalyst vs intermediate

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

Ashley McClearnen 1B
Posts: 59
Joined: Fri Sep 28, 2018 12:26 am

catalyst vs intermediate

In catalyses, will the catalyst always be there to begin with and will the intermediate always be formed?

Layal Suboh 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

Re: catalyst vs intermediate

Intermediates are produced and then consumed, so they will be on the products side for one step and then on the reactants side for a second step. Catalysts are present in the beginning of the reaction (on the reactants for the first step) and present in the end of the reaction (on the products for the second step).

Salena Chowdri 1I
Posts: 66
Joined: Fri Apr 06, 2018 11:02 am

Re: catalyst vs intermediate

Catalysts are there from the beginning, but are never consumed. However, intermediates are formed and consumed within the reaction.

Cynthia Ulloa
Posts: 52
Joined: Fri Feb 23, 2018 3:02 am

Re: catalyst vs intermediate

intermediates are produced and then used up in another reaction. a catalyst appears at the beginning and then again at the end. A catalyst can also be a part of the rate law while an intermediate can't.