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craigi said:I don't think this experiment would behave as you expect. Recall that the density of water does not vary linearly with temperature and that there is maximum density at 4 degrees centigrade, hence the rate of covective heat transfer would not be the same in the two cases.
But do you think the density would vary THAT much so as to significantly affect the result when compared to the heat loss due to cooling and heating? I mean, after all, the OP is comparing heating water in a pan versus cooling it in a refrigerator? Which test is a more valid comparison?
If you don't like water, than use a block of aluminum! Would a 10 C change in temperature be that significant in this type of test?
Zz.