GPT on Question 7, Oct 2
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 circulating refrigerant.
The process begins at the compressor, which compresses low-pressure refrigerant gas into a hot, high-pressure gas. This gas flows through condenser coils, usually located on the back or underneath the refrigerator. As room air carries heat away from the coils, the refrigerant cools and condenses into a high-pressure liquid.
The liquid then passes through a narrow expansion valve or capillary tube. Its pressure drops suddenly, causing it to become very cold. It enters the evaporator coils inside the refrigerator, where it absorbs heat from the food and air. As it absorbs that heat, the refrigerant evaporates into a gas.
The cold gas returns to the compressor, and the cycle repeats. A thermostat monitors the interior temperature and turns the compressor on when cooling is 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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