Those are (somewhat outdated) pressure units.
If you want the volume of a sample of air, then the litre is a fine unit to use.But it will always be the volume of the container in which you're keeping yoursample of air.
Pressure is the force measured over an area
yes
Ft/min
(any unit of force) divided by (any unit of area)
Air pressure is measured in pounds per square inch or psi.
Air pressure is measured in bar.
Those are (somewhat outdated) pressure units.
Air pressure is the force exerted on an object or area by the weight of the surrounding air particles.Air pressure is measured by Barometer.
If you want the volume of a sample of air, then the litre is a fine unit to use.But it will always be the volume of the container in which you're keeping yoursample of air.
A barometer measures atmospheric pressure to determine weather or altitude changes.
Depending on the units used in your country - air pressure is measured in either Pounds per Square Inch (PSI), or - Kilo Pascals (kPa).
with a barometer
Millibars
In weather maps, atmospheric pressure is measured in millibars. Standard atmospheric pressure is 1013.2 millibars at sea level. Air pressure varies depending on temperature and air density.
Atmospheric pressure is a unit of measument, and measure the pressure of the air. Much like the deeper you go in the ocean the higher the pressure is. You are actually on the bottom of an ocean of air, the higher up the less atmospheric pressure and eventually there is non when you reach outer space.