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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is entropy?
💡 Hint: Think about how disorder relates to energy.
Question 2
Easy
State the Clausius Statement of the Second Law.
💡 Hint: Consider heat flow directions.
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 Second Law of Thermodynamics state?
- Entropy can be negative.
- Entropy increases in spontaneous processes.
- Energy is created.
💡 Hint: Consider natural processes.
Question 2
True or False: It is possible to build a perfect heat engine.
- True
- False
💡 Hint: Reflect on energy transformations.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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).
Question 2
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.
Challenge and get performance evaluation