5. Equilibrium

Le Chatelier — Quiz

Test your understanding of le chatelier with 5 practice questions.

Practice Questions

Question 1

Consider the reaction: $2\text{SO}_2(g) + \text{O}_2(g) ightleftharpoons 2\text{SO}_3(g)$ If an inert gas like helium is added to the system at constant volume, what will be the effect on the equilibrium position?

Question 2

For the reaction: $\text{N}_2(g) + 3\text{H}_2(g) ightleftharpoons 2\text{NH}_3(g)$ What is the effect of adding a catalyst to this system at equilibrium?

Question 3

In an exothermic reaction, if the temperature of the system is decreased, how will the equilibrium shift?

Question 4

Consider the following reaction: $\text{PCl}_5(g) ightleftharpoons \text{PCl}_3(g) + \text{Cl}_2(g)$ If the volume of the container is increased, how will the equilibrium shift?

Question 5

For the reaction: $\text{H}_2(g) + \text{I}_2(g) ightleftharpoons 2\text{HI}(g)$ What is the effect of increasing the concentration of $\text{H}_2(g)$?