character: Dr. Emily Carter
topic: Thermodynamic Cycles in Refrigeration
grade: 12
subject: Chemistry
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character: Mr. John Davis
topic: Principles of Heat Transfer in Refrigeration Systems
grade: 12
subject: Chemistry
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character: Ms. Sarah Lee
topic: Applications of Refrigeration in Everyday Life
grade: 12
subject: Chemistry
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character: Dr. Robert Chen
topic: Understanding the Refrigeration Cycle and Its Efficiency
grade: 12
subject: Chemistry
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