question_answer 1)

  On increasing the pressure, in which direction will the gas phase reaction proceed to re-establish equilibrium, is predicted by applying the Le Chatelier's principle. Consider the reaction \[{{N}_{2}}(g)+3{{H}_{2}}(g)\underset{{}}{\leftrightarrows}2N{{H}_{3}}(g)\] Which of the following is correct, if the total pressure at which the equilibrium is established, is increased without changing the temperature? (a) K will remain same                                                    (b) K will decrease (c) K will increase                                                             (d) K will increase initially and decrease when pressure is very high

Answer:

  (a) Equilibrium constant will remain same because it changes only with temperature not with pressure change.