its related 2 matter in our surroundings
2006-12-11 06:41:05 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
They have two methods. Drooping the temperature is the one .
The other is to increase the pressure.
Both in combination can work also.
2006-12-11 06:46:29 · answer #1 · answered by minootoo 7 · 1⤊ 0⤋
The gas has to be compressed to a really high degree to get the molecules close enough together to become a liquid. This can be done by either cooling the gas or using pressure force it into a liquified form. When you are boiling water and put a lid on top, you will notice that the water vapor turns back into liquid and runs down the side of the pot. This is because the vapor collects on the surface of the lid, tansfers heat to the lid itself and cools again, turning back into liquid.
2006-12-11 14:47:11 · answer #2 · answered by redrunner 2 · 1⤊ 0⤋
Gases are liquified by a change in temperature of the environment. For example, H2O vapor is liquified when the molecules cool to room temperature. Another example is liquid nitrogen. When a container holding liquid nitrogen is taken out of the freezer, it immediately begins to emit N2 gas because room temperature is too hot for N2 to exist as a liquid.
2006-12-11 14:46:24 · answer #3 · answered by Seanseanwallabean 1 · 0⤊ 0⤋
Gases can be liquefied by the process called fractional distillation which includes either lowering the temperature or increasing the pressure...
2006-12-12 01:34:45 · answer #4 · answered by anmol_002 2 · 0⤊ 0⤋
Em Brazil, America do Sul
2006-12-11 14:52:53 · answer #5 · answered by ian 3 · 0⤊ 0⤋
it is easy to carry and so decrees temperature
2006-12-11 19:46:08 · answer #6 · answered by keral 6 · 0⤊ 0⤋