The question states; It is desired to freeze 50 kg of water in a refrigerator operating at 0oC. The heat outputted from the refrigerator is expelled into a room at 20oC. The latent heat of fusion of water is L=3.33 X 105 J/kg. If all the ice is to be frozen in one hour, what is the minimum power required? Pretty confident on how to go about the problem but now that I look at it again I'm second guessing the heat input on the fridge and the heat expelled. Is the total heat expelled to a hot reservoir the amount of heat needed to melt 50 kg of ice OR is the heat expelled from the cold reservoir the amount of heat required to melt the the 50 kgs of ice. Thanks for the help :)
Submitted October 05, 2014 at 02:38AM by Istariii http://ift.tt/1unqAD0 AskPhysics
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