2006-10-29 13:51:00 · 11 answers · asked by (: 2 in Science & Mathematics ➔ Physics
because evaporation is caused by the heating of water. if water starts hot, it can get to evaporation temperature more quickly.
2006-10-29 13:53:03 · answer #1 · answered by trainump 2 · 0⤊ 0⤋
Because the kinetic energy of the molecules is greater and more escape the liquid state because of that.
Another way to say this is that the partial vapor pressure increases as you increase the temperature of a liquid.
Boiling point is the point where the partial vapor pressure is equal to the atmospheric pressure.
This is why the boiling point decreases as you go up in altitude.
2006-10-29 21:56:01 · answer #2 · answered by Alan Turing 5 · 1⤊ 0⤋
Hot water has a higher vapor pressure than cold water. The hot water molecules are moving faster than the cold water molecules, and this makes it easier for them to escape into he air and evaporate.
2006-10-29 21:56:02 · answer #3 · answered by William F 2 · 1⤊ 0⤋
In order to evaporate, a surface molecule must have a sufficient amount of kinetic energy directed out of the fluid. In warmer water, a higher percentage of the molecules will have the required amount of kinetic energy. Thus, it will evaporate more quickly.
2006-10-29 21:56:20 · answer #4 · answered by WildOtter 5 · 1⤊ 0⤋
The degree of evaporation is a function of the vapor pressure of the water: http://en.wikipedia.org/wiki/Vapor_pressure
Since vapor pressure is proportional to temperature, the hotter the water, the more evaporation there is.
2006-10-29 21:58:48 · answer #5 · answered by arbiter007 6 · 0⤊ 0⤋
It basically vaporizes or become a gas(steam) which is lighter, and warmer and rises. Anything hot or warm will rise faster when introduced into the atmosphere
2006-10-29 21:55:45 · answer #6 · answered by Anonymous · 1⤊ 0⤋
this phenonmenon happens because of the thermal motion of moleculars of water. When temperature increases, the motion of moleculars will increase accordingly, which makes them easily overcome the pulsive force of other moleculars around them. As a result they will become steam easily.
2006-10-29 22:04:26 · answer #7 · answered by James Chan 4 · 0⤊ 0⤋
Hot water is closer to steam
2006-10-29 21:54:52 · answer #8 · answered by Susan M 7 · 0⤊ 0⤋
Rate of evaporation is directly proportional to temperature
2006-10-29 22:12:02 · answer #9 · answered by ssshhh 3 · 0⤊ 0⤋
I see this has been adequately answered, but how about that tautological answer from ssshhh? It's kind of like:
Q: Why is the sky blue?
A: The sky is blue.
2006-10-29 22:17:28 · answer #10 · answered by Anonymous · 0⤊ 0⤋