Practice Effect of Pressure Changes (for Gas‐Phase Equilibria) - 7.2.3 | Unit 7: Equilibrium | IB Grade 11: Chemistry
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Effect of Pressure Changes (for Gas‐Phase Equilibria)

7.2.3 - Effect of Pressure Changes (for Gas‐Phase Equilibria)

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Practice Questions

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Question 1 Easy

What happens to equilibrium when the pressure is increased in a reaction with 4 moles of gas on one side and 2 moles on the other?

💡 Hint: Recall Le Châtelier’s Principle.

Question 2 Easy

Does adding an inert gas change the position of equilibrium?

💡 Hint: Think about partial pressures.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does increasing pressure do to a gas-phase equilibrium with unequal moles of gas?

It shifts left
It shifts right
It has no effect

💡 Hint: Remember the relationship between pressure and volume.

Question 2

True or False: Adding an inert gas at constant volume causes the equilibrium position to shift.

True
False

💡 Hint: Reflect on how inert gases influence partial pressures.

1 more question available

Challenge Problems

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Challenge 1 Hard

You have a sealed container with the following equilibrium: $$4 NH_3(g) \rightleftharpoons 2 N_2(g) + 6 H_2(g)$$. If the volume of the container is suddenly halved, what will happen to the equilibrium position?

💡 Hint: Calculate moles on both sides to see the impact of changing volume.

Challenge 2 Hard

In a reaction where the moles total to 5 on one side and 3 on another, discuss the implications of suddenly lowering pressure. What will happen and why?

💡 Hint: Relate to Le Châtelier’s Principle for clearer insight.

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