Airulars
In Pascals in SI units. 100 kPa is about the atmospheric pressure at normal sea level.
Can be considered roughly equal to 1 Bar, from the old Mercury barometer measurement in mm of Mercury.
The unit for pressure is the pascal.
Pressure (in N/m²) P = F / A
F = force
A = area
N = newton
m² = sqare meter
1 N/m² = 1 pascal .
Osmotic pressure occurs when two separate concentrations are split using membranes allowing certain material to pass. Osmotic pressure is measured in units of atmospheres or atm for short.
I the US it is pounds per square foot or pounds per square inch
barometer
(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Those are (somewhat outdated) pressure units.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.