Indicate how the concentration of each species in the chemical equation will change to reestablish equilibrium after increasing the pressure. n 2 ( g ) 3 h 2 ( g ) − ⇀ ↽ − 2 nh 3 ( g )

The equilibrium will shift in the left direction i.e towards reactant side.

Concentration of nitrogen gas and hydrogen gas will increase whereas concentration of ammonia will decrease.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

If the pressure of the container is increased, according to the Le-Chatelier's principle, the equilibrium will shift in the direction where increase number of moles of gas molecules is taking place.

So, on increasing the pressure the equilibrium will shift in the left direction because number of moles of gases on the left hand side the reaction are more than the number of gaseous moles on right hand side.

Concentration of nitrogen gas and hydrogen gas will increase whereas concentration of ammonia will decrease.