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Evaporation and boiling are the same process, liquid water is converted to water vapour.

To convert from liquid to gas the water molecules have to absorb heat. The rapidly the heat is supplied, the faster the liquid water changes to a gas.

In evaporation this heat comes from the air the water is exposed to, the surface the water sits on and the heat already in the water (hot water cools as it evaporates). This process is relatively slow compared to boiling water where a lot of heat is being put into the system by the stove or hot plate.

It takes the same amount of heat to boil or evaporate the same amount of water. Boiling provides this heat much more quickly.

Therefore boiling water evaporates much more quickly.

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16y ago

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