Question

Why is the fridge mostly kept below the freezer

I know there are freezers below fridges too..This question is in our book..

Class 7 Science, ch 4 Heat
Please answer fast

Answer 1

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Freezer is the source for the refrigerator's coldness. When the freezer is placed on top, the cold air produced from it is denser than the warmer air in the bottom. So cold air being dense sinks down and the warm air is forced to rise up so when the warm air rises up it and gets cold in the freezer.

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Answer 2

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

The freezer compartment is chilled at first,so that the cold air being heavier than hot air falls to the bottom and thereby chilling the whole refrigerator.

The same principle is used for an air conditioner.