Practice - Second Law of Thermodynamics and Entropy
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Practice Questions
Test your understanding with targeted questions
What is entropy?
💡 Hint: Think about how disorder relates to energy.
State the Clausius Statement of the Second Law.
💡 Hint: Consider heat flow directions.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the Second Law of Thermodynamics state?
💡 Hint: Consider natural processes.
True or False: It is possible to build a perfect heat engine.
💡 Hint: Reflect on energy transformations.
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Challenge Problems
Push your limits with advanced challenges
A heat engine operates between a hot reservoir of 600 K and a cold reservoir of 300 K, absorbing 800 J of heat. Calculate: a) its efficiency, b) work done, and c) heat expelled.
💡 Hint: Use the Carnot efficiency formula for part (a).
Calculate the change in entropy when 2 kg of water at 100 °C completely vaporizes into steam at the same temperature.
💡 Hint: Identify the mass and the latent heat of vaporization.
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Reference links
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