Practice Effect of Concentration Changes - 7.2.2 | Unit 7: Equilibrium | IB Grade 11: Chemistry
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Effect of Concentration Changes

7.2.2 - Effect of Concentration Changes

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Practice Questions

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Question 1 Easy

What happens when you increase the concentration of a reactant in a reversible reaction?

💡 Hint: Think about what 'more reactant' means for product formation.

Question 2 Easy

If some product is removed from a reaction at equilibrium, what will happen?

💡 Hint: Removing something tends to make the system ‘work harder’ to replace it.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary effect of adding more reactant to a system at equilibrium?

The equilibrium shifts to the left.
The equilibrium shifts to the right.
There is no change.

💡 Hint: Think about which side of the equation you are enhancing.

Question 2

True or False: Removing a product from a reaction at equilibrium will shift the equilibrium to the left.

True
False

💡 Hint: If you remove something, what does the system want to do?

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

You have the reaction 2SO₂ + O₂ ⇌ 2SO₃ with Kc calculated as 25 at a specific temperature. If SO₂ is added, what will happen to Kc and the position of equilibrium?

💡 Hint: Understand the difference between Kc and the actual equilibrium position.

Challenge 2 Hard

If both a reactant and a product are significantly altered, which one influences the equilibrium more effectively? Explain why.

💡 Hint: Look at the stoichiometry of the reaction!

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