2007-02-22 04:37:59 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Weather
Good question. Here is the answer. Air pressure is the weight of the air per unit area. Take the air pressure (inches of mercury, millibars, etc.) and convert it to pounds per square inch and that will give you the weight of a column of air with a base area of 1 square inch. You will find that in a standard atmosphere it will be about 14 pounds/square inch.
2007-02-22 04:49:44 · answer #1 · answered by 1ofSelby's 6 · 0⤊ 0⤋
I just want to point out that, I think, it depends on the gravity of the planet, and the altitude. Air is thinner higher up, as far as I know, therefore less volume, right?
And gravity, well, at sea level, there is 14.7 pounds per square inch of pressure. So, on a planet with less gravity, things would weigh less, right?
Anyway, I did a quick search for "weight of air" which you can see in the reference source list below. Hope that helps.
2007-02-22 06:46:46 · answer #2 · answered by IronRhino 2 · 0⤊ 0⤋
Around 1 kilo per cubic metre.
I remember this question as an undergraduate student many years ago. The lecturer, an expert in meteorology, had asked us about the weight of air under his desk. Unfortunately, no student had replied correctly! He explained that since air weighs about 1 kilo per cubic metre, the air under the table would weight around 3 kilos - it was a big desk you see.... We were all astonished by this figure, we were considering an answer in gram units, not kilos!
What an amazingly lecture that was, I had almost forgotten about it! So, thanks for bringing this question up :)
2007-02-22 10:45:20 · answer #3 · answered by stardom65 3 · 0⤊ 0⤋
The atmospheric air is a colorless, tasteless and transparent. Just like other matters, it has a defined weight. According to the determination, the density of air is approximately 0.00129 gram/cubic-centimeter (g/cm3) at zero degrees Celsius and under one standard atmospheric pressure.
2007-02-22 04:43:39 · answer #4 · answered by Mark B 5 · 1⤊ 0⤋
How much air? The air resting on one square centimeter, going all the way up, weights about 10.1 newtons (14.7 pounds per square inch).
A cubic foot of air weights about 0.0745 pounds.
A cubic meter of air weights about 11.8 newtons.
This also depends on temperature.
2007-02-22 04:54:11 · answer #5 · answered by morningfoxnorth 6 · 0⤊ 0⤋
The actual answer is..... NOTHING!
Since it displaces an equal weight of the atmosphere, since it IS atmosphere, an uncontained volume of air would be precisely WEIGHTLESS.
The mass, on the other hand, would be a different.... ummmmm... 'matter'.
Pun definitely intended.
2007-02-22 05:32:03 · answer #6 · answered by T J 2 · 0⤊ 0⤋
this varies based on what is floating in the air.
1 cubed meter is about 1300 g
but in LA that's different!
2007-02-22 06:22:15 · answer #7 · answered by Anonymous · 0⤊ 0⤋
1.293kg/m^3 at 20 degrees Celsius.
2007-02-22 09:31:53 · answer #8 · answered by acatalinus 2 · 0⤊ 0⤋
it depends on the volume of air.
mass = volume * density
density of air = 0.0012 g cm^-3 = 1.2 kg m^-3 (@ r.t.p)
2007-02-22 04:42:38 · answer #9 · answered by math freak 3 · 0⤊ 0⤋
14.7 pounds per square inch
2100 pounds per square foot
total weight
5.75 quadrillion tons 5,750,000,000,000,000
2007-02-22 14:02:23 · answer #10 · answered by Kevin B 4 · 0⤊ 0⤋