## difference between k in pressure and k in concentration

Olivia_Chen_3E
Posts: 18
Joined: Wed Sep 21, 2016 2:59 pm

### difference between k in pressure and k in concentration

I was wondering if there was any difference in the method for calculating K using pressure vs. concentrations.

Chem_Mod
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### Re: difference between k in pressure and k in concentration

The method is the same but you use different values with different units for pressure vs concentration.

Kiana_Shibata_2G
Posts: 24
Joined: Wed Sep 21, 2016 2:56 pm

### Re: difference between k in pressure and k in concentration

Will we ever need to convert Kc to Kp in a problem if we have one but not the other? And is that possible?

Alyssa_Hsu_2K
Posts: 55
Joined: Wed Sep 21, 2016 3:00 pm

### Re: difference between k in pressure and k in concentration

I believe you can convert between pressure and concentration with the Pv=NRT equation.

Daniel Namgoong 3I
Posts: 10
Joined: Wed Sep 21, 2016 2:56 pm

### Re: difference between k in pressure and k in concentration

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.