Practice Exothermic and Endothermic Reactions - 6.6 | 6. Chemical Thermodynamics | ICSE Class 11 Chemistry
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Exothermic and Endothermic Reactions

6.6 - Exothermic and Endothermic Reactions

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is an exothermic reaction?

💡 Hint: Think of a reaction where heat is felt or seen.

Question 2 Easy

Name a common example of an endothermic reaction.

💡 Hint: It involves plants and sunlight.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What defines an exothermic reaction?

Absorbs heat (ΔH > 0)
Releases heat (ΔH < 0)
No heat change (ΔH = 0)

💡 Hint: Think about heat flow.

Question 2

Is photosynthesis endothermic or exothermic?

True
False

💡 Hint: Focus on energy absorption.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Explain how energy transfer during combustion aligns with exothermic reactions. Provide a relevant chemical equation and analyze the enthalpy change.

💡 Hint: Focus on the energy release and check the signs of ΔH.

Challenge 2 Hard

A reaction has an enthalpy change of +75 kJ. Discuss its implications in a practical context, such as in cooling systems.

💡 Hint: Relate it to real-world applications of heat absorption.

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