A mixture was found to contain 2.00 mol of substance A, 1.00 mol of substance B and…
CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
A mixture was found to contain 2.00 mol dm−3 of substance A, 1.00 mol dm−3 of substance B and 2.00 mol dm−3 of substance C at a temperature of 50 °C. If the equation for the reaction is 2A+B⇌C , and its equilibrium constant is 2.0, then which statement is true?
(1) The reaction is at equilibrium.
(2) The reaction is not at equilibrium and will proceed to the left.
(3) The reaction is not at equilibrium and will proceed to the right.
(4) The reaction cannot reach equilibrium.