Question
Asked Jan 21, 2020
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How an ice box or refrigerator keep things cold for a long time?

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Expert Answer

Step 1

Refrigerator works based on the principle heat is taken from the source at a higher temperature and is given to the sink at a lower temperature. To transfer heat from a higher temperature to a lower temperature work must be done on the system.

Step 2

During this process of pumping heat, the internal energy of the system reduces and ...

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Thermodynamics

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