Question

why are freezers of a refrigerator always at the top​

Answer 1

Answer:

Freezers are always on top of a fridge due to the nature of convection. The natural law of convection is that warm air rises while cold air falls, so the freezer at the top provides cold air for the other compartments at the bottom of the freezer.

Answer 2

Answer:

As hot air has lesser density than the colder air and rises above, the freezer is kept at the top section, so that hot air from downward section can rise to the freezer and gets colder.

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