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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 energy release.
Question 2
Easy
What does a negative ΔH indicate?
💡 Hint: Consider the heat flow direction.
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 do exothermic reactions do?
- Release heat
- Absorb heat
- Neither
💡 Hint: Think about the energy flow.
Question 2
True or False: A negative ΔH indicates an endothermic process.
- True
- False
💡 Hint: Revisit the definition of ΔH signs.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A reaction releases 1500 J of heat. Is this reaction exothermic or endothermic? Justify your answer.
💡 Hint: Recall the definitions of exothermic and endothermic reactions.
Question 2
Consider the enthalpy change for the combustion of propane (C₃H₈). If 1 mole of propane releases 2044 kJ of heat, what is the ΔH for this reaction? Explain your reasoning.
💡 Hint: Remember that energy released is indicated by a negative ΔH.
Challenge and get performance evaluation