Can u boil water at room temperature without heating it...?

Question

If ur answer is 'YES' can u prepare tea with this boiled water?

Answer 1

at room temperature if U keep on decreasing the atmospheric pressure so that it comes equal to or less than the vapor pressure of water then boiling will start, as water from any part of the container can form the bubbles and escape to the surroundings.

But unfortunately U wont be able to make tea fr yourself as the 'temperature' of water will still be room temperature. ( in fact it drop a little after start of boiling ! )

This is because it is not the 'boiling of water' but the high temperature of the water which makes ur tea. At high temperature the tea in water rupture its cells so its aroma and flavor molecules are freed and mixed in water which cannot occur at low temperature.

So it is possible that U make tea without boiling the water ( keep water at high pressure) but it is not possible to make a tea cup from boiling water at room temperature !!!!!!!

Answer 2

I thinkto boil water at room temperature(20 degree celcius) without heating it

Answer 3

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RE:
Can u boil water at room temperature without heating it...?
If ur answer is 'YES' can u prepare tea with this boiled water?

Answer 4

Since you can prepare "sun tea" at room temperature, the answer is yes. (However, remember that hot tea is prepared not by boiling the tea, but by steeping tea in hot water.)

You can boil water at room temperature by placing it in a sealed chamber and decreasing the ambient pressure around it. Just as water boils at lower temperatures as you ascend a high mountain due to decreasing atmospheric pressure, you can lower the pressure enough in the lab to boil it at room temperature.

Answer 5

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If you decrease the pressure enough, the boiling point of water could drop to 20C. This is because water (or any liquid) "boils" when its vapour pressure is equal to the pressure of the atmospher around it. So when the two pressures are equal, molecules of water are able to escape the liquid into the atmospher. To boil and escape into gas phase, the molecules must over come the attraction forces that exist between them. This explains why the bp of water is so high to begin with: H2O is a polar molecule which readily forms Hydrogen bonds amongs themselves. While H-bonds are weak in small #'s, in large #'s (like in a beaker of water) the are strong enough to elevate H2O's bp to 100C. So, to depress H2O's bp to 20C you would have to decrease the outside pressure. You would probably have to take it into a vacuum or something to do this. (Also, adding solutes (ie: salt)can decrease bp, however, I don't think you could decrease it to 20C via this method alone)

Answer 6

Yes, you can get water to boil at room temp by lowering the air pressure above the surface of the water: put a beaker of water in a vacuum chamber, for example, and begin to withdraw the air.

Tea leaves soaked at room temperature will make "tea" albeit not very appetizing!

But wait, there is something really cool that can happen. Boiling is the process of supplying enough energy to a liquid to allow large (very large) numbers of molecules to move fast enough to leave the surface of the liquid. In order to leave the surface they must push against the molecules in the air (nitrogen, oxygen, etc.). Make the air less dense (make for less nitrogen, oxygen, etc.) by lowering the pressure and bolling begins. But what do the fast moving water molecules leave behind?

The slower molecules, right? Right! And slower means what? Colder. Right? Right!

The water actually tries to cool as it boils. If you can get enough of the high speed water molecules to leave the beaker fast enough without supplying too much energy to warm the remaining water....it will freeze right in front of your eyes! This is one of the coolest experiments you can do for sheer fun. A beaker of water, a vacuum chamber made of glass (so you can see into it) and a fast pump. It will flash boil and almost instantly flash freeze. How cool is that!

HTH

Charles

Answer 7

Yes, that is possible indeed. The only thing you need to do is to put the water in a vacuum pomp. When the pressure of the air will be low enough, the laws of physics will alter and your water will start to boil. There is even a point that the water will be boiling, liquid and freezing at the same time.

The same will happen on very high altitude (same condition can happen as in a vacuum pomp)

For more information please check link below.

Answer 8

No, you can't boil water at room temperature!
Not even under vacuum; in that case it's just cold water-vapors with no convection currents what you will get, so the water won't be boiling technically.

So, you'd have to heet that water in order to make some tea; besides, those substances in dried plants you add in the water won't dissolve in cold water.

TO THE VOTERS: what was wrong with my answer?!

Answer 9

The other problem, of course, is that as soon as you re-pressurise the vessel containing the 'boiling' water, the boiling point of the water will rise again and the water would stop boiling.

Answer 10

yes u can boil water by lowering the pressure of the surroundings.
but u cannot make a tea in real sense cause the water could not extract the extract of tea leaves.