00:02
Okay, let's assume we have the generic expression or generic equation we see here in equilibrium and a, b, c, and d are either gaseous or aqueous because i'm going to include them all in my equilibrium expression and we only include things that have a concentration.
00:32
We do not include pure substances so therefore we do not include liquids or solids in our equilibrium constant expression.
00:51
Okay, so we're assuming a, b, c, and d are either gaseous or aqueous.
01:03
All right, so the way we would write this expression then is we take, so the equilibrium constant expression is given a capital k with a subscript of c.
01:14
We take the concentration of the product or products over the concentration of the reactant or reactants.
01:26
If there's more than one product or more than one reactant, we multiply the concentrations of each of those and if there's a coefficient in the balanced equation other than one, that coefficient becomes an exponent.
01:43
So let's see what that would look like...