Where R denotes the universal gas constant, and T the temperature of the gas, in order to render the valid aerostatic partial differential equations:
22.
Dulong and Petit did not state their law in terms of the gas constant " R " ( which was not then known ).
23.
In this equation, R represents the gas constant, T represents absolute temperature, Z is the ionic charge, and F represents the Faraday constant.
24.
Where R ^ { * } is the molar gas constant and M _ x is the apparent molar mass of gas x in kilograms per mole.
25.
By 1971 the gas constant was well known but the mol standard had already been used informally for a long time and was well established as practice.
26.
Where \ omega is the acentric factor of the species, R is the universal gas constant and Z = PV / ( RT ) is compressibility factor.
27.
In such cases, the "'universal "'gas constant is usually given a different symbol such as \ bar R to distinguish it.
28.
In this case, the following equation can be applied where is the activity of the surfactant, is the gas constant, and is the absolute temperature:
29.
It is common, especially in engineering applications, to represent the "'specific "'gas constant by the symbol " R ".
30.
They are listed below, along with their values according to the International Standard Atmosphere, using for calculation the universal gas constant instead of the air specific constant:
