How does K change during compression/expansion?

Moderators: Chem_Mod, Chem_Admin

Cindy Adiwidjaja 1B
Posts: 100
Joined: Sat Jul 20, 2019 12:15 am

How does K change during compression/expansion?

Postby Cindy Adiwidjaja 1B » Mon Mar 09, 2020 9:01 pm

How will the equilibrium composition of a reaction mixture change if a system is compressed / expanding.

WGaines_2E
Posts: 47
Joined: Mon Nov 18, 2019 12:18 am

Re: How does K change during compression/expansion?

Postby WGaines_2E » Mon Mar 09, 2020 9:16 pm

This depends on how many moles of gas you have as reactants and as products. During compression the reaction will shift in favor of whichever side has less moles of gas to try to maintain its pressure level; during expansion the reaction will shift in favor of whichever side has more moles of gas since the system would be losing pressure.

Sally Qiu 2E
Posts: 105
Joined: Fri Aug 30, 2019 12:18 am

Re: How does K change during compression/expansion?

Postby Sally Qiu 2E » Mon Mar 09, 2020 9:24 pm

the K constant does not change with a change in pressure-- only temperature. however, the reaction will adjust to compensate any disruptions made to the equilibrium. when you decrease the volume the reaction will shift to the side with less moles of gas. if you increase the volume the reaction will shift towards the side with more moles of gas


Return to “Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions”

Who is online

Users browsing this forum: No registered users and 1 guest