N2(g)+3H2(g) -> 2NH3(g)+ 22000 cal

Question

Consider the reaction is at equilibrium. Explain how the equilibrium is shifted when a. more N is added b. more H is added c. ammonia is removed

Answer 1

Le Chatelier's Principle says, in simple terms, that a system in equilibrium will try to undo what we do to it.
If we add more N it will shift to use N. So it will shift to the right.

If we remove NH3 it will shift to add NH3 back so it will shift to the right.