Question

Which of the following is an extensive property of the system:
A. Temperature
B. Volume
C. Refractive index
D. Viscosity

Answer 1

Hint: We know that certain properties such as density do not depend on how much of the substance u have taken to measure it. It is independent of the quantity of that substance taken and these are called intensive property. While others are called extensive property.

It is known that for a given sample of substance, the properties like temperature, refractive index and viscosity remain constant no matter how large quantity is used for measuring them. Thus we can classify them under intensive properties.
The comparison between these properties is stated below.

Intensive Properties	Extensive Properties
These properties are independent of the amount of matter.	These properties are dependent on the amount of matter.
For example, density, melting point or boiling point, etc.	For example, mass, volume, energy, etc.

But while measuring volume, we are actually measuring its quantity. If we have taken a larger sample, the volume will be large and vice versa.
So, the correct answer is “Option B”.

Note:
We know that certain physical properties only depend on the nature of substance. If we take 1g or 100 kg of the substance, they will not change and thus it is important to us to remember such properties. While there are certain physical properties that get changed with quantity of substance. There are extensive properties e.g. mass.