2006-12-29 20:15:46 · 6 answers · asked by santu 1 in Science & Mathematics ➔ Chemistry
the higher the temp of the water, the lower the rate of solubility of CO2 in it. if you heat the water CO2 will be released. this CO2 does not float away because CO2 is denser than regular air. it will remain on the surface of the water and collect in a blanket unless wind blows it away.
2006-12-29 20:20:26 · answer #1 · answered by Anonymous · 1⤊ 0⤋
CO2 likes to dissolve in water and make carbonic acid (H2CO3).
Since it is heavier than air it would settle onto the surface of the water and try to dissolve. But, most gases do not dissolve well in warm water so the warm water will cause the CO2 to stay out of the water and sit on top of it.
2006-12-30 13:42:35 · answer #2 · answered by The Old Professor 5 · 0⤊ 0⤋
Lancenigo di Villorba (TV), Italy
Well, I start to examinate your trouble.
Carbon dioxide is a gas who can reacts with water.
In the simpler way, I can write
CO2 + H2O <---> H2CO3
This reaction belongs to more complicate chemical equilibria interesting CO2 and H2O (e.g. preliminar physical equilibrium of CO2 dissolution in water, an equilibrium associated to overwritten reaction).
The reaction show a little enthalpy diminution, that is it may liberates a very very small amount of heat. Furthermore, in this reaction you can see one only gaseous compound.
By application of van't Hoff's rule (iso-P relationship between constant's chemical equilibrium vs. temperature) and Le Chatelier' one, you can say that H2CO3 formation proceeds greater when lower is temperature.
That is, the greater is water temperature, the lower is the CO2's containt in liquid. Since you want collect carbon dioxide as overstanding the water, you have all interests to use warm water than colder one.
If you appreciate it, I write a brief historical note.
In the XIX century, an english chemist (J. Priestley) observed that the cold water standing in winery-rooms becomes very effervescent. What do you think he observed? Cold water may assimilate CO2.
I hope this helps you.
2006-12-30 15:04:37 · answer #3 · answered by Zor Prime 7 · 0⤊ 0⤋
I presume you mean warm water in an inverted gas jar? It's because CO2 is much less soluble in warm water than in cold water, so you will get most of the CO2 in the jar rather than it combining with water to form H2CO3.
2006-12-30 05:12:01 · answer #4 · answered by JJ 7 · 0⤊ 0⤋
becoz co2 fells cold in cold water
2006-12-30 04:21:28 · answer #5 · answered by dharanikanchi 1 · 0⤊ 2⤋
as it cannot dissolve in warm water
2006-12-30 09:59:13 · answer #6 · answered by satish0811 1 · 0⤊ 0⤋