Practice Activation Energy (4) - Energy Changes in Reactions - IB 10 Sciences (Group 4) – Chemistry
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Activation Energy

Practice - Activation Energy

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Learning

Practice Questions

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Question 1 Easy

What is activation energy?

💡 Hint: Think about what energy is needed to start a fire.

Question 2 Easy

Name one example of a catalyst.

💡 Hint: Consider biological processes.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does activation energy refer to?

The energy of reaction products
The minimum energy required to initiate a reaction
The energy released in exothermic reactions

💡 Hint: Focus on what is needed to start a reaction.

Question 2

True or False: Catalysts are consumed in the reactions they speed up.

True
False

💡 Hint: Remember what happens to catalysts in a reaction.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A certain reaction has an activation energy of 50 kJ/mol. Discuss the implications of this value in terms of temperature increase and reaction rate.

💡 Hint: Apply the Arrhenius equation concept.

Challenge 2 Hard

Analyze the impact of introducing a catalyst that lowers activation energy to 20 kJ/mol in a biochemical reaction.

💡 Hint: Consider how reaction kinetics change with lower energy barriers.

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Reference links

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