24 Intensive & Extensive Variables
Learning Objectives
By the end of this section, you should be able to:
Apply the definitions of intensive and extensive properties to process variables
Classifying Process Variables
Extensive Variables – depend on the size of a system
Intensive Variables – do not depend on the size of a system
Are temperature, pressure, and volume extensive or intensive?
Temperature: intensive
Pressure: intensive
Volume: extensive. Instead we may use molar volume if we want to express volume as an intensive property. Molar volume is defined by the volume occupied by 1 mole of the substance inside the system: [latex]\hat V=\frac{V}{n}[/latex].
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