1. THE EQUILIBRIUM CONSTANT
The equilibrium constant (K) defines the position of the equilibrium as follows:
If the value of K is less than 1, there will be little product when equilibrium is reached.
If the value of K is greater then one there will be a large quantity of product when equilibrium is reached.
The larger the value of K, the more product will accumulate for that reaction.
Each reaction has a specific value of K.
Only temperature can change K.
K IS THE RATIO OF PRODUCTS TO REACTANTS. MORE PRODUCTS CORRESPOND TO A LARGER K!.
[products]
[reactants] K =

2. [products] K = = [products] K = = [C] [D]3 [A] [B]2 [N2] [H2]3
A + 2B = C + 3D
[C] [D]3
[A] [B]2
[products]
[reactants] K = =
N2 + 3H2 = 2NH3
[NH3]2
[N2] [H2]3
[products]
[reactants] K = =