According to Le Chatelier's principle, does the equilibrium shift in the direction of products or reactants when N2 is added to the equilibrium mixture of each of the following reactions? a. 2NH3(g) ➞ 3H2(g) + N2(g) b. N2(g) +O2(g) ➞ 2NO(g) c. 2NO2(g) ➞ N2(g) +2O2(g)

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