Which of the following best describes how the equilibrium constant of an exothermic…
CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Which of the following best describes how the equilibrium constant K of an exothermic reaction changes when the temperature is increased?
(a) K increases because the forward reaction is favored.
(b) K is unchanged because the equilibrium constant is independent of temperature.
(c) K decreases because the reverse reaction is favored.
(d) K increases because a higher temperature lowers the activation energy of the forward reaction.