character: Heat Transfer Hero
topic: Heat Engines and Refrigerators
grade: 11
subject: Chemistry
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character: Thermal Ted
topic: Basic Principles of Heat Transfer
grade: 11
subject: Chemistry
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character: Energy Explorer
topic: Understanding Heat Engines
grade: 11
subject: Chemistry
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character: Coolant Carl
topic: Refrigeration Processes
grade: 11
subject: Chemistry
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