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partial pressure v concentration

Posted: Wed Jan 16, 2019 5:40 pm
by Karina Koo 2H
If we have a reaction that includes both gas and aqueous states, do we use partial pressure or concentration?

Re: partial pressure v concentration

Posted: Wed Jan 16, 2019 5:43 pm
by Emmaraf 1K
You can always use either but make sure you use Kp for partial pressure and Kc for concentration.

Re: partial pressure v concentration

Posted: Wed Jan 16, 2019 7:32 pm
by Cole Elsner 2J
I believe partial pressure can only be used for homogeneous gaseous reactions. Using Kp and Kc also depends of what information you've been given, like whether or not the problem lists things in M or atm.

Re: partial pressure v concentration

Posted: Wed Jan 16, 2019 8:00 pm
by Jordan Lo 2A
Is it ok to just write K or do we have to specify which K we are using?

Re: partial pressure v concentration

Posted: Wed Jan 16, 2019 8:12 pm
by Grace Kim 1J
My TA mentioned that we can just write K, unless stated specifically to use partial pressure or concentration. But, I would just write Kp or Kc just to make sure!