Question Detail
Question
Which of the following changes would shift the equilibrium position of the reaction N2 + 3H2 ⇌ 2NH3 to the right?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Increasing the pressure favors the side with fewer moles of gas. The left side (N2 + 3H2) has 4 moles of gas, and the right side (2NH3) has 2 moles. Higher pressure will therefore shift the equilibrium to the right, producing more ammonia.
Hint
Apply Le Chatelier's principle. Consider which side of the reaction has fewer gas molecules.