How Does Water Evaporate?


Water evaporates when it gains a little heat and the water molecules gain kinetic energy. Due to this absorption of energy, the hydrogen bonds connecting water molecules to one another will break. The molecules are now in the gaseous state; this is called water vapour. Evaporation is a process by which molecules in a liquid state spontaneously become gaseous.  
1 Additional Answer
The evaporation of water only occurs at the surface which is why it doesn't need to boil to vaporize. Molecules of water spontaneously turn into a gas, which is how the water evaporates. You can find more information here:
Q&A Related to "How Does Water Evaporate"
it takes about 2 weeks.
There's a very simple piece of the puzzle missing from the other answers. Liquid water always has some pressure of water vapor above it -- the higher the temperature, the more pressure
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