Which statement best describes a system that has reached dynamic chemical equilibrium?
CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Which statement best describes a system that has reached dynamic chemical equilibrium?
(a) The concentrations of reactants and products are equal, so there is no net change in the system.
(b) Both the forward and reverse reactions have stopped, so the composition of the mixture remains fixed.
(c) The forward and reverse reaction rates are equal, causing the concentrations of reactants and products to remain constant over time.
(d) The forward reaction rate is lower than the reverse reaction rate, but the continuous addition of reactants keeps the concentrations constant.