Question

What is air pressure??? ​

Answer 1

Answer:

Atmospheric pressure, also known as barometric pressure, is the pressure within the atmosphere of Earth. The standard atmosphere is a unit of pressure defined as 101,325 Pa, which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.

Formula

P_h= P_0 e^{\frac {-mgh}{kT}}

P_h = pressure at height h

P_0 = sea level pressure

g = acceleration due to gravity

k = Boltzmann's constant (ideal gas constant divided by Avogadro's number)

T = absolute temperature

m = mass of one air molecule

Answer 2

Air pressure is the weight of air molecules pressing down on the Earth. The pressure of the air molecules changes as you move upward from sea level into the atmosphere. The highest pressure is at sea level where the density of the air molecules is the greatest.