Practice Endothermic Reactions (3) - Energy Changes in Reactions - IB 10 Sciences (Group 4) – Chemistry
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Endothermic Reactions

Practice - Endothermic Reactions

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What is an endothermic reaction?

💡 Hint: Think of processes that require energy input to occur.

Question 2 Easy

Give an example of an endothermic reaction.

💡 Hint: Consider how plants gain energy.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What occurs in endothermic reactions?

They release energy
They absorb energy
They do not involve energy changes

💡 Hint: Consider how these reactions feel thermally.

Question 2

In endothermic reactions, what is the sign of ΔH?

True
False

💡 Hint: Reflect on the meaning of energy change in these processes.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A certain chemical reaction absorbs 150 kJ of energy while producing products with a total energy of 450 kJ. Calculate the total energy of the reactants and evaluate if the reaction is endothermic or exothermic.

💡 Hint: Use the ΔH equation and consider the effects of energy absorption.

Challenge 2 Hard

A lab experiment shows that when ammonium nitrate dissolves in water, it causes a drop in temperature. Based on your understanding, categorize this process and explain.

💡 Hint: Think of how certain substances interact thermally with water.

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