Calculating Kp

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vanessas0123
Posts: 100
Joined: Wed Sep 11, 2019 12:17 am

Calculating Kp

Postby vanessas0123 » Thu Jan 23, 2020 3:54 pm

Can you calculate Kp if you are not given the individual partial pressures? ICE table is only for concentration right?

Ally Huang- 1F
Posts: 103
Joined: Thu Jul 25, 2019 12:16 am

Re: Calculating Kp

Postby Ally Huang- 1F » Thu Jan 23, 2020 3:58 pm

ICE tables can be used for partial pressures as well. Given you have enough information, you can use an ICE table to find the equilibrium partial pressures and therefore Kp.

Skyllar Kuppinger 1F
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

Re: Calculating Kp

Postby Skyllar Kuppinger 1F » Thu Jan 23, 2020 4:01 pm

You can use an ice table with partial pressures too. You use them just as you would use concentrations. But if you are only given concentrations then you can still convert those into pressure by using PV=nRT.
concentration is n/V, so rearrange the eqtn to get n/V= P/RT. if you have P and T then just plug in to find concentration.

Jack Riley 4f
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: Calculating Kp

Postby Jack Riley 4f » Thu Jan 23, 2020 4:08 pm

You can calculate Kp from Kc by using Pv=nRT if given concentrations and enough info. ICE tables are also used for partial pressures as well, though.

Katie Kyan 2K
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am
Been upvoted: 1 time

Re: Calculating Kp

Postby Katie Kyan 2K » Thu Jan 23, 2020 7:36 pm

You can calculate Kp using the equilibrium partial pressures or by using the Kc. To convert from Kc to Kp you would use the ideal gas law equation.

Tauhid Islam- 1H
Posts: 64
Joined: Fri Aug 02, 2019 12:15 am

Re: Calculating Kp

Postby Tauhid Islam- 1H » Thu Jan 23, 2020 11:35 pm

Partial pressures of a gas are also considered concentrations of the gas. ICE tables can be used for both molar concentrations and partial pressure.

Bryan Chen 1H
Posts: 58
Joined: Mon Jun 17, 2019 7:24 am

Re: Calculating Kp

Postby Bryan Chen 1H » Fri Jan 24, 2020 6:24 am

I'm pretty sure you can use partial pressures as well as concentration because partial pressures is based on the similar idea as concentration


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