2 - Calorimetry and Hess’s Law
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Practice Questions
Test your understanding with targeted questions
What is the purpose of a coffee-cup calorimeter?
💡 Hint: Think about reactions in solutions.
Define Hess’s Law.
💡 Hint: Focus on the concept of path independence.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the coffee-cup calorimeter measure?
💡 Hint: Remember, it's a calorimeter!
True or False: Hess’s Law depends on the path of a reaction.
💡 Hint: Consider what a state function means.
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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