Does water evaporate at less than 100 C?
Short answer: Yes, it does. If it did not, then there would be no clouds or precipitation, because there would be no significant amounts of water going into the air to produce these phenomena. Also, if water did not evaporate at temperatures of less than its boiling point, then wet laundry hung out on a clothes line would never get dry. As a matter of fact just about nothing would dry out because, excluding active lava flow, there is no place on Earth’s surface where the temperature exceeds 100 degrees C. Long answer: Air of any given temperature can contain some amount of water vapor. Just how much water vapor it contains depends on the air temperature. (The higher the temperature, the more water vapor air can hold.) If the air does not contain all of the water vapor that it can potentially hold, then water will evaporate from whatever water sources are available until the air does contain as much as possible. At this point, the air is said to be saturated. Another way to look at this
