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

Test your understanding with targeted questions related to the topic.

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.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

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.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

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.

Question 2

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.

Challenge and get performance evaluation