Final answer:
According to Le Chatelier's principle, if pressure is increased, the equilibrium shifts toward the products side.
Step-by-step explanation:
According to Le Chatelier's principle, if pressure is increased, then the equilibrium shifts to the side with the fewer number of moles of gas. This particular reaction shows a total of 4 mol of gas as reactants and 2 mol of gas as products, so the reaction shifts toward the products side.