2007-07-18 13:32:27 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Other - Science
no, it's not true. but i'm gonna read that article and see what the Mpemba effect is.
some people will also say that cold water boils faster than hot water. again, this is a myth.
2007-07-18 14:13:53 · answer #1 · answered by brandon 5 · 2⤊ 1⤋
It's possible, but not always true. Like if you got water that's 99.9C and 0.01C, it's clear that the cooler water will freeze first. But in some circumstances, the hot water can freeze faster than cold water in something called the Mpemba Effect. There's no proven theory about why it happens, but the proof of why it's false is insufficient.
For more, you can look at this website: http://math.ucr.edu/home/baez/physics/General/hot_water.html
2007-07-18 22:12:35 · answer #2 · answered by S N 3 · 0⤊ 0⤋
Yes, this is true. A warm body gives up heat faster than a cool body and will continue to do so as it reaches the freezing point.
2007-07-22 09:11:08 · answer #3 · answered by johnandeileen2000 7 · 0⤊ 0⤋
No hot water does not freeze faster than cold water since the cold water possess less heat energy than the hot water and therefore it will require less energy for the cold water to freeze than the hot water.....
Hope i helped u.
2007-07-18 20:44:50 · answer #4 · answered by diablo_blaze7 2 · 0⤊ 1⤋
You should run a hot water line to your ice maker and see if it makes more ice!!! I'm looking for a sucker,Wanna bet that it does?
As far as I am concerned, I'll keep filling my ice cube trays with cold water.
2007-07-19 02:14:39 · answer #5 · answered by gatorbait 7 · 0⤊ 0⤋
I actually performed this experiment.
Here are my results of water starting at different temperatures and whether they were covered or not. When ice started to form and when the surface was completely covered
http://www.scavok.com/school/Mpemba.htm
2007-07-19 01:34:58 · answer #6 · answered by Anonymous · 0⤊ 0⤋
No way! Assuming the same rate of heat transfer, the hotter water requires removal of more heat energy (calories).
2007-07-18 23:34:52 · answer #7 · answered by Martin E 2 · 0⤊ 1⤋
NO!!!!!! Water freezes at 32 degrees farenheit (0 degrees celsius). If you put hot water in the freezer, it'll just take longer to cool off.
2007-07-18 20:40:56 · answer #8 · answered by Anonymous · 0⤊ 3⤋
It is called the Mpemba effect. Read about it here http://en.wikipedia.org/wiki/Mpemba_effect
2007-07-18 20:37:12 · answer #9 · answered by gp4rts 7 · 5⤊ 0⤋
yep its true, i heard it from my uncle, i also heard that cool water melts ice faster than warm water....
2007-07-18 20:51:23 · answer #10 · answered by Todd S 2 · 0⤊ 1⤋