A particular reaction has an equilibrium constant of . A reaction mixture is prepared in which all the reactants and products are in their standard states.

If K > 1 it goes to the right (toward products)

If K < 1 it goes left.

Remember, Kc is nothing more than the ratio of Products to Reactants. So if there are more products, the numerator must be bigger than the denominator, so K has to be bigger than 1.