Question

Which of the following equilibrium will not be affected if an inert gas is added at constant volume?

• A. $H_2\left(g\right)+I_2\left(g\right)\rightleftharpoons 2HI\left(g\right)$
• B. $3H_2\left(g\right)+N_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right)$
• C. $PC{l}_5\left(g\right)\rightleftharpoons PC{l}_3\left(g\right)+C{l}_2\left(g\right)$
• D. all of the above

Answer 1

The correct option is D all of the above

If we add an inert gas to a equilibrium, it will increase the total pressure of the system but will have no affect on the concentration of the reactants and products. Thus the position of the equilibrium will not change. Thus none of the equilibriums will be affected by the addition of an inert gas.