Extensive and Intensive Properties

  • Define Intensive and Extensive properties.

  • Describe the hypothetical substance ’ideal gas’ and the ideal-gas equation of state.

  • Apply the ideal- gas equation of state in the solution of typical problems.

Extensive properties are proportional to mass. Extensive properties depend on the amount of material. These are a material’s properties such as mass and volume.
Intensive properties are independent of mass. These are either properties like temperature or others that combine, or are the ratio of, two extensive variables like density (mass/volume) or molar volume (volume/mole).

Solved Examples

Solved Example:

69-1-01

Extensive property of a system is one whose value:

Correct Answer: A

Solved Example:

69-1-02

Which of the following variables controls the physical properties of a perfect gas?

Correct Answer: D

Solved Example:

69-1-03

Temperature of a gas is produced due to: (SSC JE ME March 2017)

Correct Answer: B

Solved Example:

69-1-04

An open system is one in which: (Based on Vizag MT Mech 2015)

Correct Answer: C

Solved Example:

69-1-05

A closed system is one in which: (SJVNL JE Mech 2018)

Correct Answer: A

Solved Example:

69-1-06

Mixture of ice and water form a:

Correct Answer: D

Solved Example:

69-1-07

Which of the following are the properties of a system: (ISRO VSSC Tech Asst Mech Feb 2015)

Correct Answer: D