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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define enthalpy.
💡 Hint: Think about the energy balance in reactions.
Question 2
Easy
What sign does ΔH have in an exothermic reaction?
💡 Hint: Reflect on energy being released.
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 does a negative ΔH indicate?
- Energy is absorbed
- Energy is released
- No energy change
💡 Hint: Remember the definitions of exothermic and endothermic.
Question 2
Is the following statement true or false? 'Endothermic reactions result in a positive ΔH.'
- True
- False
💡 Hint: Reflect on what happens to energy during these reactions.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a chemical reaction with the following enthalpy values: Reactants = 250 kJ, Products = 300 kJ. Classify the reaction based on ΔH. What does this mean in terms of energy exchange?
💡 Hint: Use the enthalpy formula to classify the reaction.
Question 2
A reaction has a ΔH of -75 kJ. How can you apply this knowledge in an industrial process? Provide an example.
💡 Hint: Think about processes that benefit from released energy.
Challenge and get performance evaluation