Question

For the reaction below, if Chlorine gas is added to the system, what will happen to the equilibrium?

2NOCl(g) ⇌ 2NO(g) + Cl₂(g)

Answer 1

Adding chlorine gas to the system will cause the equilibrium to shift to the left, increasing NOCl concentration and decreasing NO and Cl2 concentrations.

Step-by-step explanation:

For the equilibrium reaction 2NOCl(g) ⇌ 2NO(g) + Cl₂(g), if chlorine gas is added to the system, Le Chatelier's principle suggests that the equilibrium will shift to counteract this change by consuming the added Cl₂. Thus, the equilibrium will shift to the left, leading to an increase in the concentration of NOCl and a decrease in the concentration of NO and Cl₂ to re-establish equilibrium.