Say you have a syringe.. and it is filled with air molecules, and you cover the end with your thumb. You can push a little ways in before you cant push any more. Why can you push when its air and you cant push when its filled with water?
2006-12-14 10:30:43 · 6 answers · asked by daisy_may_love 1 in Science & Mathematics ➔ Chemistry
AIr is compressible where as water not so much. BTW...that's more physics than chemistry.
2006-12-14 10:33:13 · answer #1 · answered by SwooshGuy 3 · 0⤊ 0⤋
gas pressure varies where as liquid pressure is not.
the natural gas law is below
Pv=nRT, where p is pressure, v is volume, n is the number of moles of the gas, R is a constant (.0821), and T is the absolute temperature in Kelvin.
When you press your thumb down, you are decreasing the volume inside the syringe, and to make up for that loss of volume, the pressure inside the syringe increases, which you are applying.
2006-12-14 10:36:28 · answer #2 · answered by Justin H 2 · 1⤊ 0⤋
Well, technically, if you are covering the end properly, it should be the same for both things. You shouldn't be able to push at all on either one.
2006-12-14 10:34:02 · answer #3 · answered by no such user 4 · 0⤊ 0⤋
Air is compressible, water is not.
2006-12-14 10:33:16 · answer #4 · answered by Johnny A 4 · 0⤊ 0⤋
air is more compressible and water is not as much
2006-12-14 10:57:00 · answer #5 · answered by Anonymous · 0⤊ 0⤋
coz air is a compressible fluid while water isnt
2006-12-14 10:33:04 · answer #6 · answered by zippo 2 · 0⤊ 1⤋