Practice Key Concepts - 2 | Equilibrium | IB 10 Sciences (Group 4) – Chemistry
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Key Concepts

2 - Key Concepts

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define a reversible reaction.

💡 Hint: Think about whether the products can change back into what you started with.

Question 2 Easy

What does dynamic equilibrium mean?

💡 Hint: Consider what 'dynamic' suggests about movement!

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What type of reactions can be reversible?

Only exothermic
Only endothermic
Both exothermic and endothermic

💡 Hint: Think about how reactions behave in different thermal conditions.

Question 2

True or False: The equilibrium constant always equals 1.

True
False

💡 Hint: Consider how K might change for different reactions.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

For the reaction 2CO(g) + O2(g) ⇌ 2CO2(g), what will happen to the equilibrium if you decrease the concentration of CO?

💡 Hint: Think about how to restore the lost reactant.

Challenge 2 Hard

Analyze how a temperature increase affects this reaction: N2(g) + 3H2(g) ⇌ 2NH3(g) ΔH = -92.4 kJ/mol.

💡 Hint: Recall whether this reaction releases or absorbs heat.

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