Le Chatelier's Principle

Moderators: Chem_Mod, Chem_Admin

Kaylee Clarke 1G
Posts: 103
Joined: Fri Aug 30, 2019 12:15 am

Le Chatelier's Principle

Postby Kaylee Clarke 1G » Sun Feb 09, 2020 8:55 pm

when you are expanding a gaseous mixture, what is an indication of which side of the reaction is favored? What is the role of the amount of moles in the reactant and product side?

WesleyWu_1C
Posts: 117
Joined: Thu Jul 25, 2019 12:16 am

Re: Le Chatelier's Principle

Postby WesleyWu_1C » Sun Feb 09, 2020 8:56 pm

When you increase the volume, which decreases the pressure of the gas molecules and changes the concentration of the gas molecules, the reaction will shift to the side with more moles of gas.

SarahCoufal_1k
Posts: 102
Joined: Thu Jul 25, 2019 12:17 am

Re: Le Chatelier's Principle

Postby SarahCoufal_1k » Sun Feb 09, 2020 8:57 pm

If expanding, volume is increasing and pressure is decreasing. It will favor the side of the reaction with more moles

Lavelle taught a shortcut in class that
If volume is decreasing, shift towards the side of the reaction with less moles. So your question is just that in reverse.

I think it is important to note that this only applies to gases too

RasikaObla_4I
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Le Chatelier's Principle

Postby RasikaObla_4I » Sun Feb 09, 2020 8:58 pm

When you are expanding a gaseous mixture, you are increasing the volume, so decreasing the pressure, so the reaction would proceed to the side with more moles of gas.

Brianna Becerra 1B
Posts: 117
Joined: Fri Aug 02, 2019 12:16 am

Re: Le Chatelier's Principle

Postby Brianna Becerra 1B » Sun Feb 09, 2020 8:59 pm

It is important to understand that this shift is due to a change in the concentration affecting the moles as when the volume is compressed, the concentrations will increase (C=n/v)

Sean Tran 2K
Posts: 65
Joined: Sat Aug 17, 2019 12:17 am

Re: Le Chatelier's Principle

Postby Sean Tran 2K » Sun Feb 09, 2020 11:13 pm

Increasing pressure and decreasing volume increases concentration on the side with a greater amount of moles.


Return to “Equilibrium Constants & Calculating Concentrations”

Who is online

Users browsing this forum: No registered users and 1 guest