2007-04-14 11:57:11 · 5 answers · asked by Giggly Giraffe 7 in Science & Mathematics ➔ Physics
There is no such thing as an absolute vacuum in reality, but as pressure drops the boiling point of liquid water drops. As the pressure gets very, very low -- about 0.6112 kPa, where one atmosphere is 101.3 kPa -- the boiling point of water is reduced to zero Celsius, and you will observe water simultaneously boiling and freezing! This is not just a theoretical comment for me, I have actually seen it happening at the Exploratorium in San Francisco. The point where water exists in solid, liquid and vapour states simultaneously is called the "triple point". Below that pressure and temperature, solid ice will convert directly to water vapour in a process called "sublimation".
2007-04-14 12:18:41 · answer #1 · answered by poorcocoboiboi 6 · 2⤊ 0⤋
At a vacuum of around 27"Hg (76mmHg Absolute), water boils at about 66°C, so..Yes, water will evaporate in a vacuum.
2007-04-14 12:12:08 · answer #2 · answered by Norrie 7 · 0⤊ 0⤋
Yes, and very rapidly too! Water boils more and more readily as the air pressure decreases, and at zero pressure it would boil instantly.
2007-04-14 12:01:10 · answer #3 · answered by Astronomer1980 3 · 0⤊ 1⤋
Hmmm...
Would the water EVAPORATE
or
Would it simply DISSIPATE?
.
2007-04-14 13:55:47 · answer #4 · answered by Anonymous · 0⤊ 1⤋
the answer is definitivly.....Maybe
2007-04-14 12:24:18 · answer #5 · answered by twism 3 · 1⤊ 1⤋