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Freezing rate


Primarygun

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Should have seen that one coming. Sry.

The cup with the cold water will freeze the fastest as the cup with the hot or warm water has more heat in it. Therefore the excess heat must 1st be lost before you can go on to the freezing phase.

 

Calculation? I don't think that one is necessary here.

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But ad, the rate of losing heat for hot water is much faster than cold water.

Let's say, 100 deg Cel for hot water and 10 degree CEl for cold water, then you can see that rate.:P

So I think calculation may be needed as the rates are playing "chase and chase"

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In some conditions the hot water will freeze first, in some conditions the cold.

 

There are many reasons why, for example.

 

Hot water will evaporate much faster than cold, this means that there is less water in the cup to freeze, which speeds up the freezing. Secondly, evaporation takes up energy, energy which comes from the hot water. As the energy is being lost due to evaporation, the water left behind is cooling.

 

hope that helps...

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Do you guys always watch the document in your monitor ?

I always print them out and watch when I turn off the computer.

 

Good point in the above post(11).

As for this, I despise reading long papers/articles on the screen, so I print them out.

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