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Kc vs Kp

Posted: Thu Jan 16, 2020 11:21 am
by Bryce Barbee
Can Kc be used when working with only gases or is Kp the only equilibrium constant used?

Re: Kc vs Kp

Posted: Thu Jan 16, 2020 11:25 am
by rachelle1K
Kc can also be used with gases, I think in the problem they will specifically ask for Kc/Kp, otherwise, Lyndon told us in a workshop that Kc is usually used.

Re: Kc vs Kp

Posted: Thu Jan 16, 2020 11:27 am
by BritneyP- 2c
You can use Kc with gases, but then they would usually provide the Kc for the gas already so that you can find one of the products or reactants, or they give you the molarity of the products and reactants. If they don't, then typically you use Kp

Re: Kc vs Kp

Posted: Thu Jan 16, 2020 11:28 am
by Sally Qiu 2E
usually Kc is used, but i believe the problem would specify which one to use. you can also tell by the information given by a problem

Re: Kc vs Kp

Posted: Thu Jan 16, 2020 11:31 am
by Max Madrzyk Dis 4G
I think Kc can be used with both but I think usually the problem will specify whether to find Kc or Kp. :)

Re: Kc vs Kp

Posted: Thu Jan 16, 2020 11:44 am
by Betania Hernandez 2E
Kc can be used with gases if they give the concentrations of reactants and products in molarity.