I have science homework and I need help. I don't get it.
2007-01-24 18:46:29 · 10 answers · asked by Daniel 1 in Science & Mathematics ➔ Chemistry
As you probably figured so far, water can indeed reach temperatures higher than the ca. 100 degrees. Just not as a liquid!
When the liquid water reach 100 C (let's say that water boils here and forget about on what montain or in which valley we are) the water molecules will use any added heat (energy) to evaporate. Water steam is simply more stable at temperatures just above boiling.
When all the water has become steam, you would be able to heat the gas/steam------but as long as evaporation takes place, the temperature doesn't climb!
The same thing is true for melting of ice. You cannot have ice above 0 C. When you heat up an ice cube you cannot get the temperature past 0 C untill you have melted all the ice........then you have liquid water, which you can heat as you know....up to 100 C.
2007-01-24 20:39:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋
why do you think water molecules can't have a temperature >100°C?
ice is water, liquid water is water, steam is water, superheated steam is water.
I used to work for company that reacted water with silicon tetrachloride at 2000 °C.
at 100°C and STP water boils. but that just means water exists in the vapor phase.
2007-01-25 03:25:47 · answer #2 · answered by Dr W 7 · 0⤊ 1⤋
they can, it's just that water evaporates and becomes steam. But it's same molecules, wether they slosh around as water or fly all over the place as gas.
Besides, 100C assumes normal air pressure. Up in the mountains, water boils at lower temperature.
2007-01-25 02:51:01 · answer #3 · answered by Anonymous · 3⤊ 1⤋
They can.
at 100 deg. C water evaporates, it doesn't mean that they can't hold on to a temperature higher than this one.
in gaseous state they can have temperature higher than 100 deg C
2007-01-25 03:53:09 · answer #4 · answered by krissh 3 · 0⤊ 0⤋
They can. Water boils at 100 deg C at sea level. If you go to an area below sea level, such as the West Bank in Jordan (418 meters below sea level) the boiling point of water would be greater than 100. Plus, the boiling point of water is increased in a pressure cooker, too.
2007-01-25 03:01:11 · answer #5 · answered by Rickydotcom 6 · 0⤊ 3⤋
They can, but at that temperature they convert from liquid water to steam. I hope that helps.
2007-01-25 02:51:32 · answer #6 · answered by Some Guy 6 · 0⤊ 0⤋
Molecules have bounds between themselves.The bounds keep the molecules together with an energy according to the elements,pressure etc.And they(the bounds) drift apart at 100 C for water at normal pressure level (1 atm), that's why it evaporates.
the bounds names can be Van der Waals and ionic.
2007-01-25 03:09:44 · answer #7 · answered by Bekdik 1 · 0⤊ 3⤋
because when water reaches a temperature greater than 100C, exceeding the boiling point, it evaporates and changes to water vapor. therefore it's not water anymore.
2007-01-25 05:30:31 · answer #8 · answered by banana_otaku 2 · 0⤊ 2⤋
100ºC is the boiling point of water at STP. This is phase-transition between liquid and gas. The gaseous form of water is water vapor. When the water vapor is generated from boiling water, it's called steam.
The humidity that you feel during the summer is also from water vapor.
2007-01-25 02:53:56 · answer #9 · answered by arbiter007 6 · 0⤊ 3⤋
they can if you there is high pressure. Pressure, volume, and temperature are related.
2007-01-25 02:54:17 · answer #10 · answered by Anonymous · 0⤊ 2⤋