## Pseudo Zero Order Reactions

$\frac{d[R]}{dt}=-k; [R]=-kt + [R]_{0}; t_{\frac{1}{2}}=\frac{[R]_{0}}{2k}$

Emily Warda 2L
Posts: 29
Joined: Fri Sep 29, 2017 7:06 am
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### Pseudo Zero Order Reactions

Is it possible to have a pseudo zero order reaction? Can someone explain how this would be possible, if it is?

joycelee1A
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

### Re: Pseudo Zero Order Reactions

I don't think so since zero order reactions don't have to do with the concentration of the reactants.

Justin Yu 3H
Posts: 36
Joined: Fri Sep 29, 2017 7:07 am

### Re: Pseudo Zero Order Reactions

No, it is not possible to have a pseudo zero order reaction. If we consider the pseudo first order reaction for a second order reaction, we essentially hold one of the reactants at such a high concentration that changes are negligible and we can ignore its effects. Theoretically, we could model a first order reaction with a pseudo zero order reaction by keeping the concentration of the reactant that is first order incredibly high, but then doing so provides nothing that isn't already known. It is much easier and more useful to just model a first order reaction as just that.

Sophia Bozone 2G
Posts: 51
Joined: Fri Sep 29, 2017 7:07 am

### Re: Pseudo Zero Order Reactions

I don't believe it is possible to have a zero order reaction. This is when one or more reactants is kept in such high quality that the r relative concentration hardly change during the reaction. If you did this to all the reactants to get something like a pseudo zero order, then they would all change drastically because there wold be nothing holding them back like a limiting reagent.