Answer:
Shift to the right side
Explanation:
Remember that any stress that we bring to a chemical equilibrium, will be answered by this in such a way as to minimize the disturbance and attain equilibrium again. This is known as LeChatelier´s principle.
If we add N₂(g) to the system at equilibrium
N₂ ( g) + 3 H₂(g) ⇄ 2 NH₃(g)
the equilibrium will consume part of the added N₂ gas until it reaches equilibrium again producing more ammonia (NH₃).
Mathematically this is equivalent to a decrease the pressure of N₂ so that the equilibrium partial pressures of the gases obey the equilbrium pressure constant Kp.
Therefore the equilibrium will shift to the product side.
