MadSci Network: Physics

Subject: At what point will colder water freeze faster than hot?

Date: Sat Nov 13 20:07:19 1999
Posted by Michael Higgins
Grade level: nonaligned School: No school entered.
City: No city entered. State/Province: VA Country: USA
Area of science: Physics
ID: 942541639.Ph

Hi, I was reading the files in your archives about the Mpemba effect and 
how hot water freezes faster than cold water due to the effects of 
evaporation. I could believe this perhaps for liquid water with wide 
differences in temperature (say 99C versus 30C), but certainly there must 
be a point where the colder water would freeze faster that warmer 
temperatured water. At what point, or at what sort of temperature 
difference between two containers of water would the cold water be the 
first one to freeze. Thanks for any help.

Re: At what point will colder water freeze faster than hot?

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