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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is an exothermic reaction?
💡 Hint: Think about what happens in a combustion reaction.
Question 2
Easy
Does the temperature of the surroundings increase or decrease in an exothermic reaction?
💡 Hint: Consider how a campfire warms the surrounding area.
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 type of reaction absorbs heat?
- Exothermic
- Endothermic
- Both
- None
💡 Hint: Recall what happens during photosynthesis.
Question 2
True or False: An exothermic reaction has a positive enthalpy change.
- True
- False
💡 Hint: Relate it to a fire releasing heat.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A reaction releases 150 kJ of heat during combustion. Classify the reaction and explain the implication of its enthalpy change.
💡 Hint: Consider combustion engines or burning fuels.
Question 2
During a dissolution process, 30 kJ of heat is absorbed. Classify this process and discuss its everyday applications.
💡 Hint: Think about how we utilize cooling in various products.
Challenge and get performance evaluation