Читать книгу Fundamentals of Heat Engines - Jamil Ghojel - Страница 43

The state of a gas may be completely specified by combining three variable properties (pressure p, temperature T, and volume V) in an equation called the ideal gas equation of state:

(1.47)

The terms in Eq. 1.47 are as follows:

 Pressure p is in N/m2 or Pa.

 Volume V is in m3.

 Mass m is in kg.

 Temperature T is in K.

 Specific volume v is in m3/kg.

 Molar amount of gas n is in kmole (1 kmole of any gaseous substance occupies a volume of 22.41 m3 at the standard temperature 0°C and pressure 101.325 Pa).

 Gas constant in J/kg. K.

 Molecular mass of any gas μ is in kg/kmole.

 Universal gas constant