Difference between Q and K?  [ENDORSED]

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Matthew_Vargas_2G
Posts: 18
Joined: Fri Jul 22, 2016 3:00 am

Difference between Q and K?

Postby Matthew_Vargas_2G » Wed Nov 09, 2016 2:37 pm

What makes Q different from K? I know that Q is the reaction quotient and K is the equilibrium constant, but what situation would need to provide Q over K or maybe K over Q?

Isayan_Natalie_3L
Posts: 14
Joined: Wed Sep 21, 2016 2:56 pm

Re: Difference between Q and K?  [ENDORSED]

Postby Isayan_Natalie_3L » Wed Nov 09, 2016 3:57 pm

The value of K never changes for an equilibrium reaction. You only need to calculate the value Q when you're given the concentrations of the products and reactants and asked if the reaction is in equilibrium (only when Q=K). K is either given, like in the first case, or you are asked to solve for K when you are told that the reaction is in equilibrium and given the concentrations of the reactants and products.


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