wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Why are freezers placed on top of refrigerators?

Open in App
Solution

  • In a refrigerator, the freezer at the top of the unit contains the evaporator, which cools the air.
  • Cold air is denser than warmer air, so it sinks to the bottom of the freezer.
  • There the cold air flows through vents (usually inside the meat keeper) into the refrigerator cabinet where it sinks to the bottom of the fridge (the crisper).
  • Air warmed by the contents of the fridge rises as the cold air displaces it, and the 'warm' (only a few degrees difference) air enters the freezer compartment where the cycle begins again.
  • Hence, the freezer in a refrigerator is fitted near the top so that it can cool the whole interior by setting up convection currents.

flag
Suggest Corrections
thumbs-up
9
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Messengers of Heat
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon