Practice - Entropy Changes in Common Processes
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Practice Questions
Test your understanding with targeted questions
Define entropy in one sentence.
💡 Hint: Think about how we describe the random distribution of energy.
What does an isothermal process imply about temperature?
💡 Hint: Remember, 'iso' refers to constant.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does entropy measure?
💡 Hint: Think of systems that have more possibilities.
True or False: The entropy of a substance decreases during a phase transition from liquid to solid.
💡 Hint: Consider how the arrangement of molecules changes.
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Challenge Problems
Push your limits with advanced challenges
A gas undergoes a reversible isothermal expansion from an initial volume of 5L to 15L at 350 K. Calculate the work done and the change in entropy when 100 J of heat is absorbed.
💡 Hint: First calculate the work using the right gas law principles, then apply to the heat absorbed.
Determine the total change in entropy for 3 kg of ice melting at 0 °C to water at the same temperature, given Lf = 334 kJ/kg.
💡 Hint: Think carefully about the conversion of energies and make sure your values are in consistent units.
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