CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Sulfur dioxide, SO2 , reacts with oxygen in the presence of a catalyst (vanadium(V) oxide) to form sulfur trioxide. This reaction is carried out in a sealed container of volume 3.0 dm3 by mixing 2.0 mol of sulfur dioxide and 1.4 mol of oxygen and allowing equilibrium to be established. A conversion rate of 15% is achieved at 700 K. Calculate the equilibrium constant K at this temperature for this reaction.