Pressure and Temperature
The density of both gases and liquids depends on the pressure and temperature of the fluid. Thus volumes measured in cold conditions or in pressurised conditions will be lower than the same mass of fluid at warmer or depressurised conditions. This fact gives rise to the necessity of choosing a benchmark pressure and temperature in which all 'net' volumes will be expressed.
Read more about this topic: Base Conditions
Famous quotes containing the words pressure and/or temperature:
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—H.L. (Henry Lewis)
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—Hermann Hesse (1877–1962)