According to the passage about how a refrigerator works, why does the back of a working fridge often feel warm?
Read the passage: A refrigerator does not create cold; instead, it moves heat from inside the cabinet to the room outside. It does this by pumping a special fluid, called a refrigerant, through a closed loop of pipes. Inside the fridge, the refrigerant evaporates into a gas, and in doing so it absorbs heat from the food and air around it. A compressor, usually found near the bottom at the back of the appliance, then squeezes the gas, raising its temperature. The hot gas flows through coils on the outside of the fridge, where it gives off its heat to the kitchen and turns back into a liquid. This is why the back of a working fridge often feels warm to the touch.
Correct answer B. Hot refrigerant gas gives off its heat through coils on the outside.
The passage explains that the compressed hot gas flows through outside coils where it gives off its heat to the kitchen, which is why the back feels warm.
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