Question

2NH3 (g) ↔ N2 (g) + 3H2 (g), and ΔH = 92.2 kJ What will be the effect on N2 if the concentration of NH3 increases? _______ A. N2 concentration will decrease. B. N2 concentration will not change. C. N2 concentration will increase. D. N2 concentration will not change, but ΔH will decrease. E. N2 concentration will not change, but pressure will increase.

Answer 1

C.
According to le chatelier's principle, the equilibrium will shift right and thus increase the concentration of N2.