GPT on Question 7, Sep 18
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 insulated cabinet to the surrounding room using a circulating refrigerant.
First, the compressor squeezes the refrigerant gas, raising its pressure and temperature. The hot refrigerant then flows through condenser coils, usually on the back or underneath the refrigerator. There, it releases heat into the room and condenses into a liquid.
Next, the liquid passes through an expansion valve or narrow capillary tube. Its pressure drops suddenly, causing it to become very cold. The cold refrigerant flows through evaporator coils inside the refrigerator, where it absorbs heat from the food and air. As it absorbs heat, it evaporates back into a gas.
The gas returns to the compressor, and the cycle repeats. A thermostat monitors the interior temperature and turns the compressor on and off as needed. Insulation and tightly sealed doors slow heat from entering, while fans in many models circulate cold air to keep the temperature even.
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