One experiment found that hot water supercooled at about 28.4° F, while cold water supercooled at about 17.6° F. “It is kind of a cool science experiment, right? If you do it carefully, you can do this without really a tremendous amount of risk to yourself. Since water begins to freeze at 32° Fahrenheit or 0° Celsius, the water molecules will randomly stop moving around and form a solid ice lattice, since it is more energy efficient for them. “You gotta think this through just a little bit before you do it,” Terry said.
Oh, and another thing: “You never want to throw it into the wind.” “Try and disperse the water as much as you can,” to maximize evaporation, Terry said. No, the important principle in the boiling-water trick is how fast the water evaporates, Katz said. I’ve heard that hot water freezes faster than room-temperature water. Cold air can’t hold as much moisture as warm air. Nor do you get the same effect when it’s warm outside. As stated above, a poorly insulated wall will freeze a 'hot' water pipe fast once the heat is turned off. Another way to make a difference - especially in pipes - is the location of the pipe in the wall related to the cold. More of it will evaporate, making a bigger cloud. Boiling the water removes disolved O2 and other things. The amount of vapor “increases very rapidly as the temperature goes up.”įor that reason, throwing boiling water into the air will look more impressive than throwing room-temperature water. Katz, a professor of physics at Washington University in St. “Boiling water or hot water evaporates much, much more rapidly than cold water,” said Jonathan I. Does hot water freeze faster than cold water Turns out, the answer to this question is a lot trickier than it seems Dooblydoo thanks go to the following Patreon supporters - we couldnt make SciShow without them Shout out to Justin Ove, Justin Lentz, David Campos, Philippe von Bergen, Chris Peters, Lilly Grainger, Happy. … Theoretically, if it were colder, you could actually see that.” Does it really matter if the water is hot? Minus-14 degrees is pretty cold. “You don’t see ice crystals falling to the ground.
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