Question

Which of the following is the extensive property of a thermodynamic system?

• A. Pressure
• B. Volume
• C. Density
• D. Temperature

Hint:

Extensive properties scale with system size, unlike intensive ones.

Answer 1

The Correct Option is B

In thermodynamics, properties of a system are classified into two categories: extensive and intensive properties. An extensive property depends on the size or extent of the system, while an intensive property does not. Examples of extensive properties include mass, volume, and total energy, whereas examples of intensive properties include pressure, temperature, and density.

Given the options: Pressure, Volume, Density, Temperature, we need to identify which is an extensive property.

• Pressure is an intensive property because it remains the same even when the system size changes.
• Volume is an extensive property because it changes proportionally with the system size.
• Density is an intensive property as it is mass per unit volume and does not depend on the system's size.
• Temperature is also an intensive property, remaining constant despite changes in system size.

Thus, the correct answer is: Volume, as it is the extensive property of the thermodynamic system.