# Consider the following reaction at equilibrium: 2NH_3(g) rightleftharpoons N_2(g) + 3H_2(g) DeltaH = +92.4 kJ. What does Le Chatelier's Principle predicts will happen when adding N_2(g) to the system at equilibrium?

See this old answer for a few more details. Le Chatelier's principle describes how equilibria evolve under stress. I think the direction equilibrium change is fairly unambiguous should $\left[{N}_{2}\right]$ increase or decrease. See here for another spray.