Which Liquid Freezes faster?
I would like to know what kind of liquid that you are talking about is more of a like hot water vs cold water and you will be putting them in the freezer to see which freezes faster or what?? Hot water cools faster than cold water because they both follow approximately the rate equation delta T = -k*dT/dt. The rate is approximate primarily because of differences in convection, but there is no doubt about average rate being higher for the hot liquid. People have claimed that the freezer has dry enough air that the hot liquid will evaporate more than the cold liquid. This would result in some additional heat being removed by the energy needed for vaporization (thus speeding the rate it cooled), and more importantly, would result in their being less water to freeze than the liquid that started cold. (Note: if you are using a close container it might also affect it.) Well good luck!!
