Alternative Forms  [ENDORSED]

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MaryBanh_2K
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Alternative Forms

Postby MaryBanh_2K » Fri Jan 10, 2020 5:07 pm

What is the purpose of having alternative forms of the equilibrium constant?

Ellen Amico 2L
Posts: 101
Joined: Thu Sep 19, 2019 12:16 am

Re: Alternative Forms

Postby Ellen Amico 2L » Fri Jan 10, 2020 5:18 pm

It just depends on what unit the the products and reactants are given in. If it's in molar concentration, then the equilibrium constant is denoted as Kc. If it's given in partial pressures, then it's denoted as Kp. They both mean the same thing, but it's just to differentiate between both.

Aarja Pavade 1H
Posts: 103
Joined: Sat Aug 17, 2019 12:18 am

Re: Alternative Forms  [ENDORSED]

Postby Aarja Pavade 1H » Sat Jan 11, 2020 5:19 pm

It also depends on the states of the molecules. For instance, if given gases and their partial pressure, Kp will be used. For aqueous substances and concentration, Kc will be used. However, you can convert between partial pressure and concentration for a gas by using the ideal gas law and deriving that P=conc(RT) or conc=P/RT.


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