Units for Kc and Kp

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Tiffany Chao 2H
Posts: 117
Joined: Fri Aug 09, 2019 12:17 am

Units for Kc and Kp

Postby Tiffany Chao 2H » Sun Jan 12, 2020 3:55 pm

I understand that when we calculate Kc, we omit the units and put brackets instead to indicate molar concentration. However, is it the same rule for when we calculate Kp? Do parentheses indicate gas concentration so therefore we don't need to put units like bars or atms?


Alfred Barrion 2H
Posts: 100
Joined: Sat Jul 20, 2019 12:16 am

Re: Units for Kc and Kp

Postby Alfred Barrion 2H » Sun Jan 12, 2020 4:01 pm

We dont include units for Kp because its a constant.

Julie Park 1G
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

Re: Units for Kc and Kp

Postby Julie Park 1G » Sun Jan 12, 2020 4:08 pm

You're correct in that we don't put units, but I believe the parentheses indicate gas pressure (not concentration).

Jessica Katzman 4F
Posts: 35
Joined: Mon Jun 17, 2019 7:24 am

Re: Units for Kc and Kp

Postby Jessica Katzman 4F » Sun Jan 12, 2020 4:51 pm

Brackets are used to denote molar concentrations, and parenthesis are used to denote partial pressure.

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