Consider the following reaction at equilibrium: 2nh3 (g) n2 (g) + 3h2 (g) le châtelier's principle predicts that the moles of h2 in the reaction container will increase with consider the following reaction at equilibrium: 2nh3 (g) n2 (g) + 3h2 (g) le châtelier's principle predicts that the moles of in the reaction container will increase with an increase in total pressure by the addition of helium gas (v and t constant) a decrease in the total pressure (t constant) some removal of nh3 from the reaction vessel (v and t constant) addition of some n2 to the reaction vessel (v and t constant) a decrease in the total volume of the reaction vessel (t constant)