A column of air an inch square, from the surface of the Earth out to the edge of space, is

**14.7 pounds**. A column of air one meter square has a weight of 101 325 Newtons, or about 10 330 kg. As you may notice, this is the same as atmospheric pressure, 14.7 psi or 101.325 kPa.Likewise, people ask, how heavy is 1m3 of air?

At IUPAC standard temperature and pressure (0 °C and 100 kPa), dry air has a density of

**1.2754 kg**/m^{3}. At 20 °C and 101.325 kPa, dry air has a density of**1.2041 kg**/m^{3}. At 70 °F and 14.696 psi, dry air has a density of 0.074887 lb/ft^{3}.What is the weight of the air?

FINAL ANSWER: 1 cubic foot of air at standard temperature and

**pressure**assuming average composition weighs approximately 0.0807 lbs. This one doesn't have an answer that is exact or necessarily correct as air is a**composite**mixture of**various**gases and this mixture can change due to an enormous quantity of variables.Which is more dense warm or cold air?

The absorbed energy makes the molecules in

**air**move and expand, therefore decreasing the airs density. The opposite is true for**cold air**. It is more dense because the molecules are closer together and they are closer together because the bonds are absorbing less energy and therefore do not move as much.