Two milk bowls are at 35degreesCelsius & 38degreeCelsius. When these two bowls are kept in refrigerator at 4degreecelsius, then which milk-bowl cools down quickly?

1 Answer
Nam D.
Mar 18, 2018

Wouldn't the hot one cool down quicker?

Explanation:

If the two milk bowls are made of the same material, volume, and have the same surface area, I'd say the hotter one cools down quicker.

Even though the bowls have a small difference of temperature #(DeltaT=4^@C)#, the hotter will probably cool down faster due to the larger temperature difference between the fridge and the bowl's material.

A similar question is asked here:

https://physics.stackexchange.com/questions/187996/will-an-object-with-a-higher-temperature-lose-its-heat-faster-than-a-cooler-yet

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