GPT on Question 7, Sep 12
Answer in plain prose only. Do not use bullet points, headers, bold text, or lists. Explain how a refrigerator works.A refrigerator moves heat from inside the cabinet to the surrounding room using a sealed loop of refrigerant.
The process begins in the compressor, which squeezes the refrigerant gas. Compression raises the gas’s pressure and temperature. The hot, high-pressure refrigerant then flows through condenser coils, usually located on the back or underneath the refrigerator. There it releases heat into the room and condenses into a liquid.
The liquid refrigerant passes through a narrow expansion valve or capillary tube. Its pressure suddenly drops, causing it to become much colder. It then enters the evaporator coils inside the refrigerator, where it absorbs heat from the food and interior air. As it absorbs heat, the refrigerant evaporates back into a gas.
The gas returns to the compressor, and the cycle repeats. A thermostat measures the temperature inside and switches the compressor on and off as needed. Fans may circulate cold air inside and help release heat outside. The refrigerator does not create cold; it cools its interior by transferring heat from inside to the room.
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