GPT on Question 7, Sep 23
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 closed loop of refrigerant.
First, the compressor squeezes the refrigerant gas, raising its pressure and temperature. The hot refrigerant then flows through condenser coils, usually located on the back or underneath the refrigerator. As room air carries heat away, the refrigerant cools and condenses into a liquid.
Next, the liquid passes through a narrow expansion valve or capillary tube. Its pressure drops suddenly, causing it to become very cold. It then flows through evaporator coils inside the refrigerator. There, the refrigerant absorbs heat from the food and interior air, causing it to evaporate back into a gas.
The gas returns to the compressor, and the cycle repeats. A thermostat monitors the interior temperature 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 removes heat from its interior and releases that heat into the room.
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