2007-01-02 02:03:54 · 8 answers · asked by ? 6 in Science & Mathematics ➔ Physics
It might not seem like it, but air has weight. In fact, anything that has mass, also has weight. The fact that you can feel the wind blow against you means air has mass. At sea level, the total weight of the atmosphere exerts a pressure of about 14.7 pounds per square inch. You don't notice this weight, however, because you are used to it. If you live in Denver, Colorado, which is at an elevation of about 5,000 feet, then about 15% of the mass of the atmosphere is below you, resulting in an air pressure of about 12.5 pounds per square inch. At the top of Mount Everest (over 29,000 feet), 70% of the atmosphere lies below, leaving an air pressure of only 4.4 pounds per square inch.
2007-01-02 02:12:04 · answer #1 · answered by Anonymous · 2⤊ 0⤋
I think this may help you-
Atmospheric pressure is a direct result of the weight of the air. This means that air pressure varies with location and time, because the amount (and weight) of air above the earth varies with location and time. Atmospheric pressure drops by 50% at an altitude of about 5 km (equivalently, about 50% of the total atmospheric mass is within the lowest 5 km). The average atmospheric pressure, at sea level, is about 101.3 kilopascals (about 14.7 pounds per square inch).
2007-01-02 02:24:37 · answer #2 · answered by Neo 3 · 0⤊ 0⤋
Be specific in asking the Question, yours is similar to "How much does water/any matter weigh?"
It depends on the amount of air (Mass) present.....
1 kg of air weighs 1 kg in any condition if the number of molecules present in the diffetent conditions are same irrespective of volume, temperature & pressure...
Density of air is approximately 1.2 kg / (m^3), at Normal Temperature & Pressure (NTP)..
Apply your values to the density and get the weight..
2007-01-02 03:04:15 · answer #3 · answered by kslokesh 2 · 0⤊ 0⤋
I once heard that all the atmosphere together weighs about 15 pounds. I don't actually know, but that's what I heard.
2007-01-02 04:55:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋
A volume of air or a column of air? What temperature and pressure?
Density of air at sea level and at 20 °C dry air has a density of approximately 1.2 kg/m3 while a column of air is ... well it depends on density doe is not? ;-)
See reference
2007-01-02 02:22:26 · answer #5 · answered by Edward 7 · 1⤊ 0⤋
Hot or Cold ?
2007-01-02 02:15:08 · answer #6 · answered by donrentf 3 · 0⤊ 0⤋
it depends on the altitude
2007-01-02 04:02:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋
1.00000000007655
2007-01-02 02:08:44 · answer #8 · answered by Anonymous · 0⤊ 0⤋