Practice Energy Profile Diagram for an Exothermic Reaction - 7.4.1 | Chapter 7: Energy Changes in Chemical Reactions | IB Grade 9 Chemistry
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does an exothermic reaction do?

💡 Hint: Think about the heat generated.

Question 2

Easy

Name one example of an exothermic reaction.

💡 Hint: Consider everyday processes involving fire.

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

Which of the following describes an exothermic reaction?

  • A reaction that absorbs heat
  • A reaction that releases heat
  • A reaction that neither absorbs nor releases heat

💡 Hint: Focus on the energy direction.

Question 2

True or False: The activation energy for an exothermic reaction is the same as the energy released.

  • True
  • False

💡 Hint: Consider what activation energy means.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A reaction takes 50 kJ of activation energy and releases 100 kJ. Calculate ΔH for this reaction.

💡 Hint: Remember the formula for ΔH.

Question 2

Describe how to alter an exothermic reaction to maximize energy release efficiently using catalysts.

💡 Hint: Think about ways to speed up reactions.

Challenge and get performance evaluation