The document discusses the position of equilibrium in chemical reactions. It states that if a dynamic equilibrium is disturbed, the position of equilibrium will move to counteract the change according to Le Chatelier's principle. Specifically, it provides examples of how the equilibrium position would change if ammonia, hydrogen, or nitrogen were removed from the ammonia synthesis reaction, or if pressure or temperature were increased. It also notes that while catalysts speed up the rate of the reaction, they do not change the equilibrium position.