Practice Energy Profile Diagrams: Visualizing Reaction Pathways - 7.4 | Chapter 7: Energy Changes in Chemical Reactions | IB 9 Chemistry
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Energy Profile Diagrams: Visualizing Reaction Pathways

7.4 - Energy Profile Diagrams: Visualizing Reaction Pathways

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is represented on the left side of an energy profile diagram?

💡 Hint: Think about what we start with in a reaction.

Question 2 Easy

In an exothermic reaction, does heat flow into or out of the surroundings?

💡 Hint: Consider the definition of exothermic.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the activation energy represent in a reaction?

The energy released
The energy absorbed
The energy barrier to overcome

💡 Hint: Consider what is needed to start a reaction.

Question 2

In an energy profile diagram for an exothermic reaction, the products are located at a higher energy level than reactants. True or False?

True
False

💡 Hint: Recall what happens to energy in exothermic reactions.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A reaction shows a large energy hump in its energy profile diagram. Discuss the implications of the activation energy on the reaction rate and provide examples of how this might affect real-world processes.

💡 Hint: Consider what kinds of changes can speed up a reaction.

Challenge 2 Hard

Consider a scenario where a new catalyst is introduced to an existing reaction system. What impact will this have on the energy profile diagram related to activation energy and overall reaction pathways?

💡 Hint: Think about how catalysts impact reaction mechanisms.

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