CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
For a reaction at 298 K, the equilibrium constant is K=0.80. Which of the following best describes the composition of the equilibrium mixture?
(a) Products dominate the equilibrium mixture because K<1 indicates the forward reaction is spontaneous.
(b) The reaction fails to establish equilibrium because any K value other than 1 drives the reaction to completion.
(c) Reactants and products are present in comparable amounts because ΔG∘ is near zero.
(d) Reactants dominate the equilibrium mixture because ΔG∘ is large and positive.