Instantaneous Rate

Moderators: Chem_Mod, Chem_Admin

Kate Zeile 2D
Posts: 39
Joined: Sat Jul 22, 2017 3:01 am

Instantaneous Rate

Postby Kate Zeile 2D » Thu Feb 22, 2018 8:28 pm

What is the value of knowing the instantaneous rate of a reaction? I understand how knowing the average reaction rate would be helpful but I do not understand the importance of knowing the reaction rate at a single point in time.

Chem_Mod
Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

Re: Instantaneous Rate

Postby Chem_Mod » Thu Feb 22, 2018 9:34 pm

Calculating the instantaneous rate at the beginning of the reaction tells us the fastest rate at which the reaction is occurring. Averages can be useful, but are inherently less accurate.

Yu Chong 2H
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

Re: Instantaneous Rate

Postby Yu Chong 2H » Fri Feb 23, 2018 3:27 pm

Knowing the initial rate is also important because it allows us to analyse how the reaction mechanism works and that would help us in understanding the rate of reaction after the initial time.

Michael Cheng 1C
Posts: 51
Joined: Thu Jul 13, 2017 3:00 am

Re: Instantaneous Rate

Postby Michael Cheng 1C » Sun Feb 25, 2018 4:54 pm

Why are we only looking at initial rate of reaction in this chem class?

Jiun Yue Chung 2I
Posts: 27
Joined: Fri Sep 29, 2017 7:06 am

Re: Instantaneous Rate

Postby Jiun Yue Chung 2I » Sun Feb 25, 2018 4:55 pm

We aren't just looking at initial (or at least I don't think so). There are two different equations we use to find the initial rate and then we use the Integrated Rate Laws to find rates after the start of the reaction :)


Return to “Kinetics vs. Thermodynamics Controlling a Reaction”

Who is online

Users browsing this forum: No registered users and 1 guest