The reaction N2(g) + 3 H2(g) ? 2 NH3(g) is at equilibrium in a reaction chamber. If an experimenter injects a small amount of N2 into the chamber, what happens to the forward reaction rate at that moment? What happens to the reverse reaction rate at that moment? What happens to the forward reaction rate from the moment N2 is added until equilibrium is re-established? What happens to the reverse reaction rate from the moment N2 is added until equilibrium is re-established? Are the forward and reverse reaction rates equal or different when equilibrium is re-established?