Graphs

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

Melissa Villanueva1K
Posts: 64
Joined: Wed Nov 15, 2017 3:01 am

Graphs

Is there a possibility that there will be graphs given or we will have to draw graphs in accordance to the order of the reaction? Thanks!

jocelyntzeng
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

Re: Graphs

We won't be required to draw graphs but be able to interpret them.

Ryan Troutman 4L
Posts: 68
Joined: Fri Sep 28, 2018 12:22 am

Re: Graphs

It's unlikely we'll have to draw graphs as data points would be difficult to interpret for T.A's and take too much time, however being able to understand what each graph means is important for the final.

taywebb
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: Graphs

You might have to label the axes of the graphs and the slope if given the reaction order.

Ruth Glauber 1C
Posts: 100
Joined: Wed Sep 18, 2019 12:20 am

Re: Graphs

Anyone know if this is still relevant?

Megan Kirschner
Posts: 46
Joined: Wed Feb 20, 2019 12:17 am

Re: Graphs

Does this still apply to winter 20!? Re: We won't be required to draw graphs but be able to interpret them.

Eesha Sohail 1D
Posts: 100
Joined: Sat Aug 17, 2019 12:16 am

Re: Graphs

I assume we'd have to be able to correctly interpret general trends in a graph, but I don't really think we'd have to draw accurate graphs on our own; at the most there will likely be a template provided.

andrewcj 2C
Posts: 102
Joined: Thu Jul 11, 2019 12:17 am

Re: Graphs

I think the most important thing pertaining to graphs is that you understand the relationship between the variables. For example, the graph of a 0 order reaction is a linear relationship between reactant concentration and time, whereas the graph of a 1st order reaction is a linear relationship between ln(reactant concentration) and time.

smurphy1D
Posts: 51
Joined: Mon Nov 18, 2019 12:18 am

Re: Graphs

For graphs, we should just know the relationship between what order the reaction is with what goes on the x axis, as well as the direction of the slope on the graph and whether k is positive or negative.

BeylemZ-1B
Posts: 95
Joined: Thu Jul 25, 2019 12:17 am

Re: Graphs

Melissa Villanueva1K wrote:Is there a possibility that there will be graphs given or we will have to draw graphs in accordance to the order of the reaction? Thanks!

since none of the assigned homework problems had us drawing graphs ourselves and finding slopes, I doubt we will be expected to on a test.

Maika Ngoie 1B
Posts: 97
Joined: Fri Aug 02, 2019 12:16 am

Re: Graphs

We may not have to draw the graphs, but we will probably need to know what graphs of first order, second order, and zeroth order reactions look like vs time.

Brandi 2C
Posts: 52
Joined: Thu Feb 28, 2019 12:15 am

Re: Graphs

Megan Kirschner wrote:Does this still apply to winter 20!? Re: We won't be required to draw graphs but be able to interpret them.

I don't think we would be, since none of the homework problems I've looked over have a drawing aspect in them. However I think it would be wise to understand what zeroth/first/second order graphs look like and be able to determine from a reaction which graph would suit it best.

Leonardo Le Merle 1D
Posts: 56
Joined: Wed Feb 27, 2019 12:16 am

Re: Graphs

Also it might be a good idea to memorize the y-axis for various orders of reactions (zeroth [A], first ln[A], second 1/[A])

Tanmay Singhal 1H
Posts: 143
Joined: Sat Jul 20, 2019 12:16 am