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The Mpemba effect: competition and resources

Description

Help discover why warm water freezes quicker than cold water. The Royal Society of Chemistry offered £1000 for the best and most creative explanation of this phenomenon, known as the Mpemba effect. View the winning entry, try the experiment for yourself, or read the original paper.

Type of Activity

:
working independently

Audience

:
Teacher

Age Group

:
Primary to 18 years
the-mpemba-effect

The Mpemba effect


The Mpemba effect is the phenomenon where hot water freezes quicker than cold water. The Royal Society of Chemistry offered £1000 to the person or team producing the best and most creative explanation as to why this occurs.


We received 22 000 entries to the competition. These were whittled down to just 11 finalists by the panel of expert judges and the public vote.


The winner of the competition, Nikola Bregovic, research assistant in the field of physical chemistry at the Department of Chemistry, University of Zagreb, Croatia, was announced on the 10th of January 2013.

ADDITIONAL INFORMATION

The Royal Society of Chemistry investigated the Mpemba Effect with Hermes2012. The Avogadro's Lab Experiment is from the January 2012 edition of our student chemistry magazine The Mole.