Use the reaction to answer the question.

Question

heat + PCl^5(g) ⟷ PCl^3(g) + Cl^2(g)

What changes can you make to increase the amount of reactant at equilibrium in this reaction? There is only one correct answer.

1. decreasing the temperature
2. removing the product
3. adding more reactant
4. increasing the pressure

Answer 1

1. decreasing the temperature