If you leave a glass of water beside your bed overnight, in the morning there are small bubbles in it, stuck to the sides of the glass.
Why is this?
Is it the breath of some sinister underwater creatures?
Is it something dull and chemical?
2007-03-26 03:03:10 · 10 answers · asked by ewanspewan 4 in Science & Mathematics ➔ Chemistry
Water coming out of a tap is usually aerated. This means that air is dissolevd in the water. Water will hold more gas in solution when it is cool as compared to warmer water. As your glass sits out overnight, some of this air will spontaneously come out of solution. This amount is increased as the water warms to room temperature over the course of the night.
To demostrate this, you can leave out two glasses of water, one from the tap and the otherwould be tap water that has been boiled (boiling water drives gases out of solution). The boiled water will have very few bubbles on the glass, as compared to the tap water.
2007-03-26 03:24:42 · answer #1 · answered by Matthew P 4 · 4⤊ 0⤋
Actually, it is rather mundane. It is CO2 coming out of solution, exactly like catrbonated beverages. If you boiled the water first, and then left it overnight, there would be no bubbles in the morning as boiling would drive all of the CO2 out of solution. Carbon dioxide dissolves easily in water and gets there from a couple of sources, mainly the aerator on the faucet, and lesser from whereever the pump is which provides the water pressure. Raising the pressure and aerating the water adds a small amount, not enough to bubble like soda, but enough to come out as a few bubbles over a long time, like overnight.
2007-03-26 03:15:22 · answer #2 · answered by rowlfe 7 · 5⤊ 0⤋
The 2 h's and the 1 O !!!!
2007-03-26 03:11:35 · answer #3 · answered by Chris 5 · 0⤊ 3⤋
The water is giving up tiny amounts of dissolved gases (mainly air) that collect and form bubbles.
2007-03-26 04:55:49 · answer #4 · answered by Norrie 7 · 0⤊ 0⤋
Ususally when it come out of the tap it is cold. As it warms up to room temp, the water can hold less gas and the gas that was dissolved is realeased as bubbles.
2007-03-26 03:12:01 · answer #5 · answered by Anonymous · 4⤊ 0⤋
It befell to me too i did not wash something and the water replaced into cloudy. Its a micro organism bloom and it won't harm your tank, do not undertaking it happens to all people and it will bypass away in some weeks. ^_^
2016-10-19 23:07:09 · answer #6 · answered by ? 4 · 0⤊ 0⤋
Usually, it's bacteria in the water giving off gas. As the water's temp increases the bacteria multiply, and so you get more (and larger) bubbles full of bacteria farts! Funny, huh? (you're not drinking it, are you? Ewww!!)
:-P
2007-03-26 03:09:44 · answer #7 · answered by Me 6 · 0⤊ 1⤋
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2007-03-26 04:59:06 · answer #8 · answered by bpgveg14 5 · 2⤊ 0⤋
its the water relesing bacteria i think
2007-03-26 03:11:55 · answer #9 · answered by angelface 3 · 0⤊ 3⤋
oxygen i think!
2007-03-26 03:13:13 · answer #10 · answered by Anonymous · 0⤊ 0⤋