thermo or kinetics?

Moderators: Chem_Mod, Chem_Admin

Alison Trinh 1E
Posts: 104
Joined: Thu Jul 25, 2019 12:16 am

thermo or kinetics?

Postby Alison Trinh 1E » Sun Mar 01, 2020 8:52 pm

What is the biggest factor that we should take into account when trying to determine whether thermodynamics or kinetics controls a certain reaction?

Harry Zhang 1B
Posts: 101
Joined: Sat Sep 14, 2019 12:16 am

Re: thermo or kinetics?

Postby Harry Zhang 1B » Sun Mar 01, 2020 8:54 pm

Look at whether it's spontaneous(thermodynamics) and whether the reaction occurs at a fast rate(kinetics).

Orrin Zhong 4G
Posts: 51
Joined: Sat Jul 20, 2019 12:16 am

Re: thermo or kinetics?

Postby Orrin Zhong 4G » Sun Mar 01, 2020 9:01 pm

Kinetics looks at how the reaction progresses over time whereas thermodynamics looks at the beginning and final energy states of a reaction.

Ritu Gaikwad 2E
Posts: 52
Joined: Thu Jul 11, 2019 12:16 am

Re: thermo or kinetics?

Postby Ritu Gaikwad 2E » Sun Mar 08, 2020 5:32 pm

For kinetics you should be looking at how the reaction is progressing by looking at the rates and the actual pathway of the reaction. For thermodynamics you should be looking at the initial and final rates and making sure you understand the energies involved with both of them.

Owen-Koetters-4I
Posts: 50
Joined: Fri Sep 28, 2018 12:16 am

Re: thermo or kinetics?

Postby Owen-Koetters-4I » Sun Mar 08, 2020 6:30 pm

for kinetics look at how the reaction progress and for thermodynamics look at the initial and final states

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

Re: thermo or kinetics?

Postby Eesha Sohail 1D » Sun Mar 08, 2020 11:26 pm

Aren't the thermodynamics and kinetics of a reaction connected though, through the relation between K and both k's? Can a change in one predictably affect the other at all?

Brandon Valafar
Posts: 112
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

Re: thermo or kinetics?

Postby Brandon Valafar » Sun Mar 08, 2020 11:34 pm

Kinetics focuses on how the reaction progresses over time. Thermodynamics focuses on the the initial and final rates.

Mitchell Koss 4G
Posts: 128
Joined: Sat Jul 20, 2019 12:17 am

Re: thermo or kinetics?

Postby Mitchell Koss 4G » Tue Mar 10, 2020 12:22 pm

they don't control a reaction; instead, they are 2 different ways to think about what a reaction produces, uses, and how it proceeds.

Caroline Beecher 2H
Posts: 51
Joined: Wed Nov 14, 2018 12:21 am

Re: thermo or kinetics?

Postby Caroline Beecher 2H » Tue Mar 10, 2020 2:39 pm

I think a better mindset to have when considering a reaction is to think that thermodynamic analysis tells us whether the forward or reverse reaction is favored (spontaneous or not spontaneous). However, thermodynamics does not tell us about the pathway, which is where kinetics comes in. From kinetics we can tell the speed or rate of a reaction and look into different mechanisms that factor into different reactions.

Michelle Xie 2B
Posts: 99
Joined: Sat Aug 17, 2019 12:18 am

Re: thermo or kinetics?

Postby Michelle Xie 2B » Tue Mar 10, 2020 11:37 pm

thermo is used to determine how a reaction progressed while thermo is used to look at initial and final states.


Return to “Kinetics vs. Thermodynamics Controlling a Reaction”

Who is online

Users browsing this forum: No registered users and 3 guests