Slope of second order reaction
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 50
- Joined: Fri Sep 29, 2017 7:05 am
- Been upvoted: 1 time
Slope of second order reaction
Why is the slope of a second order reaction positive compared to first and zero order reactions?
-
- Posts: 49
- Joined: Sat Jul 22, 2017 3:01 am
Re: Slope of second order reaction
The variable for a second order reaction that create a linear graph are 1/[A] over time while for a first order reaction it is ln[A] over time and for a zero order reaction it is [A] over time. The 1/[A] creates a positive slope because as the concentration of A decreases 1/[A] increases.
-
- Posts: 52
- Joined: Fri Sep 29, 2017 7:04 am
Re: Slope of second order reaction
For the second order reaction, k is proportional to 1/[A]. As the time of reaction increases, the concentration [A] decreases and 1/[A] increases, so the slope is positive.
-
- Posts: 50
- Joined: Fri Sep 29, 2017 7:07 am
Re: Slope of second order reaction
The integrated rate laws of the zero and first-order have a -kt, while the second-order has a +kt. Since the integrated rate laws correspond to y=mx+c (m=k), the slope depends on k.
Return to “Second Order Reactions”
Who is online
Users browsing this forum: No registered users and 4 guests