Can you cool a kitchen by leaving the refrigerator door open?
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Can you cool a kitchen by leaving the refrigerator door open? |
Explanation
In order to cool a refrigerator, an external work is done to transfer heat from the cold sink to the hot sink. But in this process, the efficiency is not 100%. This means that a part of this work done is converted into and lost as heat. This heat is dumped outside of the refrigerator and hence the temperature inside the refrigerator is lowered.
But, when the door is kept open to cool a room, the expelled heat is dumped back into the room. This means that even though work is being done to extract heat from the room, after the thermodynamic process, additional heat is dumped into the room, making it slightly warmer.
Verified Answer
No
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