Question

The Keq of a reaction is 4 x 10-7. At equilibrium:
a. the reactants are favored.
b. the products are favored.
c. the reactants and products are present in equal amounts.
d. the rate of the reverse reaction is much greater than the rate of the
forward reaction.

Answer 1

Think this through.
Keq = 4.5E-7 = (products)/(reactants)
At equilibrium you know forward rate = reverse rate so d can't be right.
If c is right then products = reactants so K = 1; that is not so and c can't be right.
That leaves either a or b for the answer. For Keq to be such a SMALL number that makes the (products) small and (reactants) large. So the answer is ..........?

Answer 2

The Keq of a reaction is 4 x 10-7. At equilibrium:

Answer 3

a. the reactants are favored.