Which of the following is correct for .

(1)

 As time passes by [N₂] , [H₂] decreases and [NH₃] increases and at equilibrium concentrations of both reactants and products remain unchanged with time.

This  graph, [NH₃] is decreasing and [N₂] & [H₂] are increasing 

hence,it's not a correct representation.

(2)

This is a correct representation. As time passes by [N₂],[H₂] decreases, and [NH₃] increases and at equilibrium concentrations of both reactants and products remain unchanged with time.

(3)

In this graph [NH₃], [N₂] & [H₂] are decreasing, this is impossible.