## Pseudo First Order Reactions

$\frac{d[R]}{dt}=-k[R]; \ln [R]=-kt + \ln [R]_{0}; t_{\frac{1}{2}}=\frac{0.693}{k}$

Lily Guo 1D
Posts: 64
Joined: Fri Sep 29, 2017 7:03 am

### Pseudo First Order Reactions

How do we know if something is a pseudo-first-order reaction? Or would that be specified?

Mitch Mologne 1A
Posts: 74
Joined: Fri Sep 29, 2017 7:04 am

### Re: Pseudo First Order Reactions

I would think they would give you details about using a pseudo first order.

William Xu Dis 1D
Posts: 31
Joined: Fri Sep 29, 2017 7:05 am

### Re: Pseudo First Order Reactions

It would most likely have to be specified. Just know that all reactants will be in excess concentrations except for one. That can be an indication that a pseudo first order reaction is in play.