GPT on Question 7, Oct 1
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 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. There, it releases heat into the room and condenses into a liquid.
Next, the liquid refrigerant passes through a narrow expansion valve or capillary tube. Its pressure drops sharply, causing it to become very cold. It then enters the evaporator coils inside the refrigerator or freezer. As the refrigerant evaporates, it absorbs heat from the food and air inside the cabinet.
The warmed refrigerant gas returns to the compressor, and the cycle repeats. A thermostat monitors the internal temperature and switches the compressor on and off as needed. Fans may circulate cold air inside and help release heat outside. Insulation and tight door seals slow heat from entering, allowing the refrigerator to maintain a low temperature efficiently.
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