GPT on Question 7, Sep 30
Answer in plain prose only. Do not use bullet points, headers, bold text, or lists. Explain how a refrigerator works.A refrigerator cools food by moving heat from inside the cabinet to the surrounding room. It does not create cold; it uses a circulating refrigerant to absorb and release heat.
Inside the refrigerator, liquid refrigerant passes through an expansion device, which lowers its pressure and temperature. The cold refrigerant then flows through the evaporator coils, usually located behind an interior panel. As air moves across these coils, the refrigerant absorbs heat from the air and evaporates into a gas. A fan circulates the cooled air around the food compartments.
The compressor then squeezes the refrigerant gas, raising its pressure and temperature. This hot, high-pressure gas flows through condenser coils on the back or underneath the refrigerator. There, it releases heat into the room and condenses back into a liquid. The liquid returns to the expansion device, and the cycle repeats.
A thermostat monitors the temperature inside the refrigerator and switches the compressor on and off as needed. Insulation and tight door seals slow the entry of heat from the room, helping the refrigerator maintain a cool temperature efficiently.
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