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Tag: Density


Baumé Scale

The Baumé scale was first developed in 1768 as a method of measuring the density of liquids. Today it is largely superseded, however it is still used in some industries as a measure of density or concentration. This article presents formula for the calculation of degrees Baumé for a liquid.


Properties of Air

This article contains formulae and tabulated data for the properties of air as a function of temperature.


Ideal Gas Law

The ideal gas law is used to relate volume, pressure and temperature for gases. The ideal gas law is an approximation and is generally more accurate at mild temperatures and pressures. The properties of gases increasingly deviate from ideal as conditions become more extreme, i.e. low temperature or high pressure. In these cases a compressibility factor may be used to correct for non-ideal behaviour when using the ideal gas relationship.