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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of a coffee-cup calorimeter?
💡 Hint: Think about reactions in solutions.
Question 2
Easy
Define Hess’s Law.
💡 Hint: Focus on the concept of path independence.
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 the coffee-cup calorimeter measure?
- Heat exchanged
- Pressure
- Volume
💡 Hint: Remember, it's a calorimeter!
Question 2
True or False: Hess’s Law depends on the path of a reaction.
- True
- False
💡 Hint: Consider what a state function means.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Determine the heat capacity of a calorimeter if 1 g of benzoic acid releases 30,000 J and the temperature rises by 5 °C.
💡 Hint: Use the heat change and temperature change to find heat capacity.
Question 2
Using Hess's Law, find ΔH for the reaction C + O2 → CO2, given: C + O2 → CO (ΔH1 = -100 kJ) and CO + ½ O2 → CO2 (ΔH2 = -200 kJ).
💡 Hint: Add the enthalpy changes of the stepped reactions.
Challenge and get performance evaluation