Food & Drink2 mins ago
Ice
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What temperature does water freeze at?
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Educational sites will give classroom experiments in producing supercooled water at notmal temperature.
http://www.exploratorium.edu/cooking/candy/activity-drops.ht ml
When it is produced in clouds, the pressure is lower
It does both at zero centigrade is8748. When the temperature is dropping the water starts to freeze at zero and stays at that temperature until it has frozen
When the temperature is rising the opposite happens.
In each case the temperature can only continue to rise or fall, as applicable, after the thawing or freezing has taken place
Thermodynamically speaking, the difference between solid and liquid water at 0 degree is the amount of energy in the system. if energy is added to ice its not used to increase the temperature but goes into the melting process which, in itself consumes energy as the disorder (or entropy) of the system increases. Its similar to the phase equilibrium of the water/vapour system. Evaporation consumes energy, condensation gives off energy, but both happens at the same temperature (not necessarily 100�C, though)