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Forums
Physics
Classical Physics
Mechanics
Bottle of supercooled water + agitation = some ice and water
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[QUOTE="mfb, post: 6164036, member: 405866"] The "barrier" is the formation of an initial ice crystal. Two or three water molecules sticking together don't form a proper ice crystal, and their bonds won't be very strong compared to a larger crystal. The water is so cold that an existing crystal will grow, but it is not so cold that a crystal will easily form if there is none present. Moving the water around is likely to produce some places with different pressure, rearranging some particles floating in the water or whatever, and it increases the chance that there are good conditions for the formation of an initial crystal somewhere.Sure. You can calculate how much heat is released when x gram of ice form, and see how much heat is needed to heat the water to 0 degree C. [/QUOTE]
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Forums
Physics
Classical Physics
Mechanics
Bottle of supercooled water + agitation = some ice and water
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