pseudo rate law

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hanna_maillard3B
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am

pseudo rate law

Postby hanna_maillard3B » Thu Mar 14, 2019 11:16 pm

can someone please explain pseudo rate law and why it's important

Yvonne Du
Posts: 64
Joined: Fri Sep 28, 2018 12:23 am

Re: pseudo rate law

Postby Yvonne Du » Thu Mar 14, 2019 11:22 pm

I was wondering the same thing. Dr.Lavelle mentioned it during class, but I am still confused.

Shreya_Bharadwaj_1D
Posts: 38
Joined: Fri Sep 28, 2018 12:22 am

Re: pseudo rate law

Postby Shreya_Bharadwaj_1D » Thu Mar 14, 2019 11:59 pm

I remember reading about it in the textbook but never really haering about it in class

Salena Chowdri 1I
Posts: 66
Joined: Fri Apr 06, 2018 11:02 am

Re: pseudo rate law

Postby Salena Chowdri 1I » Sun Mar 17, 2019 1:00 am

So the pseudo rate law just allows easier analysis of the effect of one reactant. In this case, the other reactant(s) are in high concentration that they can be considered constant, and so k[high conc. reactant] is k'

Ethan Yi 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: pseudo rate law

Postby Ethan Yi 1K » Sun Mar 17, 2019 1:06 am

its more theoretical for a lab situation. we dont have any calculations with this i dont think

Kriti Goyal 4K 19
Posts: 32
Joined: Fri Sep 28, 2018 12:21 am

Re: pseudo rate law

Postby Kriti Goyal 4K 19 » Sun Mar 17, 2019 1:18 am

Pseudo rate law is just a method used to simplify second order reactions that have more than one reactants. You basically take one reactant in a very high concentration, so the second reactant seems insignificant compared to it and doesnt have a big impact on the rate law of the equation. Therefore the reaction can technically behave like a first order, though practically it is a second order reaction. Its done to make calculations easier.

Matthew Casillas 1C
Posts: 29
Joined: Fri Sep 28, 2018 12:21 am

Re: pseudo rate law

Postby Matthew Casillas 1C » Sun Mar 17, 2019 9:08 am

How would we know if the reactant is in excess? Would that be told to us or would we just have to ballpark it based on looking at the concentration?

Elle_Mendelson_2K
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

Re: pseudo rate law

Postby Elle_Mendelson_2K » Sun Mar 17, 2019 9:13 am

We will be told I believe


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