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Intensive and Extensive Properties
TEMPERATURE AND PRESSURE MEASUREMENTS

Thermodynamics Heat Transfer and Fluid Flow Volume 1 of 3
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Thermodynamics THERMODYNAMIC PROPERTIES Summary The important information from this chapter is summarized below. Thermodynamic Properties Summary The following properties were defined: • Specific volume (n) is the total volume (V) of a substance divided by the total mass (m) of that substance. • Density  (r)  is  the  total  mass  (m)  of  a  substance  divided  by  the  total volume (V) occupied by that substance. • Specific gravity (S.G.) is a measure of the relative density of a substance as compared to the density of water at a standard temperature. • Humidity is the amount of moisture (water vapor) in the air.   It can be measured in absolute or relative units. The following classifications of thermodynamic properties were described: • Intensive properties are those that are independent of the amount of mass. • Extensive properties are those that vary directly with the mass. Rev. 0 Page 5 HT-01







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