Which property remains the same when the size of the system changes and does not depend on mass?

Which property remains the same when the size of the system changes and does not depend on mass?

• A. Intensive Property
• B. Extensive Property
• C. State Property
• D. Phase Property

Answer: (A)

Intensive properties are defined by the state of the system, not by how much material you have. They stay the same when you change the system size or amount of mass. Classic examples are temperature and pressure; density is also intensive for a uniform substance, so scaling the system up or down leaves it unchanged. This is exactly the idea behind the question: you’re looking for something that does not depend on mass and remains the same when the size of the system changes. In contrast, extensive properties like mass or volume grow with the amount of material, so they change when you change system size. Phase or state descriptors describe conditions, but the specific criterion given—independence from mass and invariance with system size—points to an intensive property.

Intensive properties are defined by the state of the system, not by how much material you have. They stay the same when you change the system size or amount of mass. Classic examples are temperature and pressure; density is also intensive for a uniform substance, so scaling the system up or down leaves it unchanged. This is exactly the idea behind the question: you’re looking for something that does not depend on mass and remains the same when the size of the system changes. In contrast, extensive properties like mass or volume grow with the amount of material, so they change when you change system size. Phase or state descriptors describe conditions, but the specific criterion given—independence from mass and invariance with system size—points to an intensive property.