## Graphs

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

Lauryn Shinno 2H
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

### Graphs

Will we need to be able to set up graphs to find the order of a reaction on the final? If so, how do you do it?

bonnie_schmitz_1F
Posts: 81
Joined: Fri Sep 28, 2018 12:24 am
Been upvoted: 1 time

### Re: Graphs

I'm not sure the answer to this question exactly, but I think we should know the graphs for different order reaction.
For a first order reaction, there is a linear plot of ln[A] vs. t
For a second order reaction, there is a linear plot of 1/[A] vs. t
For a zero order reaction, there is a linear plot of [A] vs. t

Melissa Bu 1B
Posts: 36
Joined: Fri Sep 28, 2018 12:19 am

### Re: Graphs

I think you can tell the reaction order of a reaction by looking at the graphs and their axes (as mentioned above). However, I am not sure if you can mathematically compute the reaction order from a graph.