We
can use the previous ideas to explain how water
evaporates.
Even at room temperature,
some of the water particles will be very
energetic. These particles can overcome
the hold of other particles and can leave
on their own. However, they can only leave
if they happen to be at the surface.
At the same time,
air particles will be colliding with water
particles at the surface. A high energy
air particle is able to knock medium and
low energy water particles away from the
others.
