Energy can be removed from water as heat at and even below
Chapter , Problem 21(choose chapter or problem)
Energy can be removed from water as heat at and even below the normal freezing point (0.0 C at atmospheric pressure) without causing the water to freeze; the water is then said to be supercooled. Suppose a 1.00 g water drop is supercooled until its temperature is that of the surrounding air, which is at $5.00-C. The drop then suddenly and irreversibly freezes, transferring energy to the air as heat. What is the entropy change for the drop? (Hint: Use a three-step reversible process as if the water were taken through the normal freezing point.) The specific heat of ice is 2220 J/kg 9K
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