The Haber process is an important reaction for the fixation of nitrogen, nitrogen is converted into ammonia, an important component in the production fertilizers. N2(g) + 3H2 = 2NH3(g) + 22,000cal. Consider the reaction is at equilibrium. Explain in which direction the equilibrium is shifted when: A) more nitrogen is added? B) more hydrogen is added? C) ammonia is removed? D) the reaction is cooled?