How long does it take to freeze ice?

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asked Nov 26, 2021 in Other-Food Drink by sniffles899 (790 points)
How long does it take to freeze ice?

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answered Nov 27, 2021 by Gracy (144,820 points)
It takes approximately 3 to 6 hours for ice to freeze depending on the temperature of the freezer.

When freezing ice in the freezer it takes around 3 to 4 hours for the ice to freeze.

If you freeze ice cubes you can expect it to take 3 to 4 hours for the ice cubes to be fully frozen.

If you want to speed up the freezing time of the ice cubes you can use hot water in the ice cube trays instead of cold water.

Hot water freezes faster than cold water so the ice cubes will freeze much faster.

However in some freezers it may take around 6 hours for the ice cubes to fully freeze.

It sometimes takes approximately 6 hours for water to freeze in an ice cube tray for the average freezer temperature.

However, the time it takes to freeze depends on the liquid being frozen and the temperature the freezer is set to.

Why does hot water freeze faster than cold water?

If the water is initially hot, cooled water at the bottom is denser than the hot water at the top, so no convection will occur and the bottom part will start freezing while the top is still warm.

This effect, combined with the evaporation effect, may make hot water freeze faster than cold water in some cases.

The Mpemba effect is the observation that warm water freezes more quickly than cold water.

Hence the faster freezing.

Another is that warm water evaporates rapidly and since this is an endothermic process, it cools the water making it freeze more quickly.

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