Answer
a. The reaction is not at equilibrium.
b. The reaction is at equilbrium.
c. The reaction is at equilbrium.
Work Step by Step
a. The rate of the forward reaction must be equal to the rate of the reverse reaction at equilibrium.
b. This is characteristic of a reaction at equilibrium.
c. If the rate of the reverse reaction does not change, the rate of the forward reaction does not change either, so the reaction is at equilibrium.
