The little 3 in the air beside m would indicate cubic meters. A little 3 in the air beside cm would indicate cubic centimeters.
liters (volume)
Volume,Temperature and height above earth's surface
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.
depends on of what you;re tryin to determine the volume of... For water it would generally be measured in cubic litres, for air it would be cubic millimetres,centimetres, metres and or kilometres
That depends what you want to measure: its length, width, weight, mass, color, volume, surface area, air resistance, etc.
i can find the mass of the air by comparing the volume of unit vaccum (ie)1 unit of course with the 1 unit of volume of air and then can find its density by examining the intramolecular force in the air particles and then by formula, density= mass/volume its simple
A "unit of area" has no mass (it has no volume).
Cubic meters
Raise it to the power of minus one. Specific volume is volume per unit mass, density is mass per unit volume. They are multiplicative inverses of one another.
liters (volume)
cubic meters, m3
Humidity means amount of water vapour present in air with respect to total amount of air. Relative humidity means ratio of amount of water vapours per unit volume of air to the capacity of air to held maximum water vapours in unit volume of air, at given air temperature.
Air pressure is the weight of all the air above you. The higher you go, the more air is below you.
Volume,Temperature and height above earth's surface
Air pressure is based on the density of molecules in the atmosphere. Density is mass divided by volume or D=M/V. By increasing the mass of air, the density increases. Decreasing volume also causes the density to increase. A high pressure zone means air has more mass per unit volume. A low pressure zone means the air has less mass per unit volume.
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.
Any volume and time units can be used, however the SI unit for volume flow m3/s