Re: How is evaporation different from boiling?

The difference is how fast it happens. Evaporation is normally considered
to be when a liquid becomes a gas without any turbulence or violent 
disturbances; typically it happens in a thin layer at the surface of the liquid 
and the liquid itself is at a lower temperature than the boiling point.

Boiling happens when the liquid is raised to the temperature at which it becomes 
a gas; now liquid is turning to gas not only at the surface, but throughout its 
bulk. We see bubbles form within the body of the liquid (although these, at 
least at first, are often dissolved gas rather than the liquid itself).

For more, you might consult a chemical dictionary.

                                                   Dan Berger
                                                   MadSci Administrator