Answer : The equilibrium will shift in the right direction or product side.
Explanation :
Le-Chatelier's principle : This principle states that if any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.
If the concentration on reactant side increases then the equilibrium will shift in the direction where decrease the concentration of reactant. Thus, the equilibrium will shift in the right direction or product side.
The given chemical reaction is:

As per question, if more amount nitrogen gas is added that means amount of reactant increases then the equilibrium will shift in the direction where decrease the amount of
takes place. Thus, the equilibrium will shift in the right direction or product side.
Hence, the equilibrium will shift in the right direction or product side.