difference between k in pressure and k in concentration

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Olivia_Chen_3E
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Joined: Wed Sep 21, 2016 2:59 pm

difference between k in pressure and k in concentration

Postby Olivia_Chen_3E » Sat Nov 19, 2016 1:40 am

I was wondering if there was any difference in the method for calculating K using pressure vs. concentrations.
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Chem_Mod
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Re: difference between k in pressure and k in concentration

Postby Chem_Mod » Sat Nov 19, 2016 10:44 am

The method is the same but you use different values with different units for pressure vs concentration.
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Kiana_Shibata_2G
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Joined: Wed Sep 21, 2016 2:56 pm

Re: difference between k in pressure and k in concentration

Postby Kiana_Shibata_2G » Sat Nov 19, 2016 1:07 pm

Will we ever need to convert Kc to Kp in a problem if we have one but not the other? And is that possible?
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Alyssa_Hsu_2K
Posts: 55
Joined: Wed Sep 21, 2016 3:00 pm

Re: difference between k in pressure and k in concentration

Postby Alyssa_Hsu_2K » Sat Nov 19, 2016 9:50 pm

I believe you can convert between pressure and concentration with the Pv=NRT equation.
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Daniel Namgoong 3I
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Re: difference between k in pressure and k in concentration

Postby Daniel Namgoong 3I » Sat Nov 19, 2016 10:27 pm

You can change Kp to Kc and vice versa with the equation Kp = Kc(RT)^(delta n) but I believe that we are not going to be needing this equation for the class.
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