character: Dr. Emily Johnson
topic: Thermodynamic Principles of Refrigeration
grade: 12
subject: Chemistry
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character: Dr. Sarah Mitchell
topic: Refrigeration Cycles and Their Applications
grade: 12
subject: Chemistry
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character: Professor Mark Thompson
topic: Heat Transfer and Refrigeration Technology
grade: 12
subject: Chemistry
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character: Dr. Lisa Carter
topic: Chemical Refrigerants and Environmental Impact
grade: 12
subject: Chemistry
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