I mean, gas has mass so why isn't gravity dragging it to the ground?
2006-12-13 09:05:57 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Only some gases float.... Those which are the same "weight" or mass as air (well...mostly nitrogen)....or less. Other gases sink very quickly.
You can do experiments with balloons, if you like. Fill a balloon with CO2, and you'll find that it's much heavier than air. Helium or Hydrogen, of course, are much lighter, and float.
Many years ago, before we knew that CFC's were destroying the Ozone, I used to fill balloons with freon, and give them to kids in my store. They were very heavy (literally heavy), and you could throw them like a football, because of the mass of the gas.
Ultimately speaking, however, no gas (or very little) is light enough to leave the gravitational pull of earth. Even helium and hydrogen kinda just float up until they reach a level where nitrogen is so thin, that they just kinda mix in, and no longer float upwards.
2006-12-13 09:13:00 · answer #1 · answered by glassnegman 5 · 0⤊ 0⤋
it is because it has a lesser amount of protons and nuetrons than in liquids or solids with each proton and nuetron adding to its overall atomic mass. This means that gas is less dense than liquids or solids. And the gas is being pulled by the earth which is why there is no gas in space and im thinkin that it is because there is so much gas that that it just accumulates on top of each other creating the different layers of the atmosphere, this is why the air gets thinner when you go to a high altitude.
P.S.: sorry if this confused you.
2006-12-13 09:19:25 · answer #2 · answered by Matt 2 · 0⤊ 0⤋
Which gas? Carbon dioxide is more dense than air, so it sinks. Helium is less dense than air, so the pressure of the atmosphere pushes it up as the air tries to move downward into the space made by the helium filled balloon (air pressure is caused by gravity pulling air downward).
2006-12-13 09:10:33 · answer #3 · answered by Randy G 7 · 1⤊ 0⤋
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2016-10-14 21:27:18 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Gas is just air, it floats just like the clouds.
2006-12-13 09:08:08 · answer #5 · answered by Webballs 6 · 0⤊ 0⤋
Things float if they are less dense than the medium they are in.
2006-12-13 09:08:27 · answer #6 · answered by M C 3 · 1⤊ 0⤋
I'm just guessing but it might be that it is less dense than water.
2006-12-13 09:08:01 · answer #7 · answered by annastar92 2 · 0⤊ 0⤋
Around here, it seems to congregate behind my husband..........
2006-12-13 09:14:04 · answer #8 · answered by beetlejuice49423 5 · 0⤊ 0⤋