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The specific volume of a system is __________ property.

  • A.intrinsic
  • B.extensive
  • C.intensive
  • D.not a property

Answer: C

Specific volume is an intensive property.

Specific volume is volume per unit mass, \(v = V/m\). If a system is divided into two halves, each half has the same specific volume as the whole, so the value does not depend on how much matter there is. That is the test of an intensive property, like pressure and temperature.

Volume itself is extensive, because it doubles when the mass doubles; dividing an extensive property by mass always gives an intensive one. 'Intrinsic' is not one of the two classes of thermodynamic property, and specific volume certainly is a property, since it has a definite value in every state.

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