Coverting Kp to Kc

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Coverting Kp to Kc

Postby alicechien_4F » Mon Jan 20, 2020 6:40 pm

Can we use Kc for all of the equilibrium problems that have gases in the reactant/products instead of Kp? I don't remember going over converting Kc to Kp in lecture or discussion in depth, so would we have to do it on the test?

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Re: Coverting Kp to Kc

Postby AlyshaP_2B » Mon Jan 20, 2020 6:54 pm

I don't think you will need to do that, you should just use it in whatever form it is given to you and as long as you stay consistent it should get you the correct answer!

Ellen Amico 2L
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Re: Coverting Kp to Kc

Postby Ellen Amico 2L » Mon Jan 20, 2020 7:12 pm

It just depends on what units the data is given in. If it's concentrations, then you would denote that with Kc, but if you're given it in pressure, then denote it with Kp. If for some reason you need to convert between concentration and pressure, you can use PV=nRT.

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