Science Buddies: "Ask an Expert"

for the project about the mpemba effect: how does that help anyone by knowing whether hot water or cold water freezes faster? how are the results useful?
pls respond asap

Hi johndoe21,

I’m assuming that you’re working on the project described here:

https://www.sciencebuddies.org/science- ... p032.shtml

It may be that the “Mpemba Effect” is an interesting phenomenon that has no practical application as yet. But this effect is a consequence of heat transfer, as pointed out in the background section of the project.

Heat transfer is something that we all encounter daily. Probably the most important example is the radiative heat transfer from sunlight that warms Earth. More heat transfer examples are shown at the following links:

http://hyperphysics.phy-astr.gsu.edu/hb ... ranex.html

http://www.pbslearningmedia.org/resourc ... -transfer/

I hope this helps and good luck with your project. Please post again if you have more questions.

A. Norman