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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the definition of enthalpy?
💡 Hint: Think about the heat dynamics during a chemical process.
Question 2
Easy
Identify whether the reaction 2H₂ + O₂ → 2H₂O is exothermic or endothermic.
💡 Hint: Consider the release of energy during combustion reactions.
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?
- A) Exothermic
- B) Endothermic
- C) Neutral
💡 Hint: Think about how temperature changes during the reaction.
Question 2
True or False: Enthalpy change can be measured indirectly using Hess's Law.
- True
- False
💡 Hint: Consider the significance of path independence in thermodynamic calculations.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the formation enthalpy values for O₂, N₂, and NH₃, calculate the ΔH for 2NH₃(g) → N₂(g) + H₂(g).
💡 Hint: You may have to reverse the formation equation for the products.
Question 2
Explain why reactions with high ΔH are often slow and require a temperature increase to proceed.
💡 Hint: Think about the energy required to break bonds and initiate reactions.
Challenge and get performance evaluation