character: John Smith
topic: Refrigeration Cycles and Food Preservation
grade: 11
subject: Chemistry
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character: Marie Curie
topic: Thermodynamics in Refrigeration
grade: 11
subject: Chemistry
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character: Galileo Galilei
topic: Principles of Heat Transfer
grade: 11
subject: Chemistry
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character: Albert Einstein
topic: Energy Conservation in Food Preservation
grade: 11
subject: Chemistry
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