Practice - Refrigerators and Air Conditioners
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Practice Questions
Test your understanding with targeted questions
What is the first step in the refrigeration cycle?
💡 Hint: Think of how pressure increases.
What happens during condensation?
💡 Hint: It cools down and changes state.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary function of a refrigerator?
💡 Hint: Think about its main use.
True or False: The expansion phase reduces the temperature of the refrigerant.
💡 Hint: Consider what happens during this phase.
1 more question available
Challenge Problems
Push your limits with advanced challenges
If a refrigerator has a coefficient of performance (COP) of 3, how much work is done if it removes 600 J of heat?
💡 Hint: Think about the definition of COP.
Consider a system where the refrigerant does not effectively absorb heat during evaporation. What could be some potential effects on the refrigerator's efficiency?
💡 Hint: Think about heat absorption and cooling function.
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Reference links
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