Specific Volume: Is It Intensive or Extensive Property?

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SUMMARY

Specific volume is classified as an intensive property, despite its dependence on mass, as defined by the equation SV = m/density. The discussion clarifies that intensive properties maintain consistent values across different control volumes, regardless of the mass of the substance. This is contrasted with extensive properties, which vary with the amount of material present. The confusion arises from the relationship between specific volume and mass, but the underlying principle of intensive properties remains applicable.

PREREQUISITES
  • Understanding of thermodynamic properties
  • Familiarity with the concepts of intensive and extensive properties
  • Basic knowledge of density and its units
  • Proficiency in using equations related to specific volume
NEXT STEPS
  • Research the definitions and examples of intensive vs. extensive properties
  • Study the implications of specific volume in thermodynamics
  • Explore the relationship between density and specific volume in various substances
  • Learn about control volumes and their significance in thermodynamic analysis
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Students and professionals in thermodynamics, chemical engineering, and physical sciences who seek to deepen their understanding of material properties and their classifications.

Thermal-Dude
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I have a query regarding Specific Volume, which is a property of a substance. I don't get why it is considered as an Intensive Property. It IS dependent on mass (SV = m/density) and hence I think it should be an Extensive Property. Could someone explain pl?
 
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Hi Thermal-Dude, welcome to the board.
Thermal-Dude said:
(SV = m/density)
You might want to check that. What are the units of specific volume?

How about density? How about internal energy or enthalpy? They also have units with mass in them.

If you break that something down into little chunks (ie: control volumes) and all the chunks still have the same properties, then the property you're looking at is intensive.
 
Hey Q_Goest,

Thanks for your reply.
 

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