Ice is trapped by a piece of wire gauze at the bottom of a tube containing water. The water at the top of the tube boils before the ice at the bottom of the tube melts.
Why does this happen?
1 )
Convection currents are circulating throughout the water.
2 )
Ice is a poor emitter of thermal energy.
Water is a poor conductor of thermal energy.
4 )
Wire gauze is a good conductor of thermal energy.
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