Converting K back to Kc


Moderators: Chem_Mod, Chem_Admin

kennedyp
Posts: 56
Joined: Tue Nov 13, 2018 12:18 am

Converting K back to Kc

Postby kennedyp » Mon Feb 24, 2020 9:56 pm

What's the equation needed to convert K back to Kc? I assumed you would just rearrange the Kc to K equation, but I wanted to ask just to be sure.

kennedyp
Posts: 56
Joined: Tue Nov 13, 2018 12:18 am

Re: Converting K back to Kc

Postby kennedyp » Mon Feb 24, 2020 9:58 pm

Also, do you guys think points would be deducted on the test if we don't convert back to Kc after finding the new K?

405268063
Posts: 102
Joined: Thu Jul 25, 2019 12:17 am

Re: Converting K back to Kc

Postby 405268063 » Tue Feb 25, 2020 12:49 am

I think Kc can signify K for all intents and purposes at least on the test. Kc is generally most used for the equilibrium constant for a rxn that is made up of aqueous solutions though, and Kp for for gases since Kc stands for concentration and Kp stands for pressure.

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: Converting K back to Kc

Postby 805097738 » Tue Feb 25, 2020 5:38 pm

kennedyp wrote:What's the equation needed to convert K back to Kc? I assumed you would just rearrange the Kc to K equation, but I wanted to ask just to be sure.


aren't those the same

kennedyp
Posts: 56
Joined: Tue Nov 13, 2018 12:18 am

Re: Converting K back to Kc

Postby kennedyp » Wed Mar 04, 2020 1:19 pm

805097738 wrote:
kennedyp wrote:What's the equation needed to convert K back to Kc? I assumed you would just rearrange the Kc to K equation, but I wanted to ask just to be sure.


aren't those the same

Not according to the book :( Look at the very last part of section 5J.3, it talks about converting K to Kc when using Van't Hoff equation for gases

905373636
Posts: 62
Joined: Thu Aug 01, 2019 12:15 am

Re: Converting K back to Kc

Postby 905373636 » Wed Mar 04, 2020 1:46 pm

kennedyp wrote:
805097738 wrote:
kennedyp wrote:What's the equation needed to convert K back to Kc? I assumed you would just rearrange the Kc to K equation, but I wanted to ask just to be sure.


aren't those the same

Not according to the book :( Look at the very last part of section 5J.3, it talks about converting K to Kc when using Van't Hoff equation for gases


So, isn't it just a unit conversion of atm or whatever has units to mol/L?


Return to “Van't Hoff Equation”

Who is online

Users browsing this forum: No registered users and 1 guest