Question

Identify the intensive quantities from the following.

• A. Enthalpy
• B. Temperature
• C. Volume
• D. Refractive Index

Answer 1

Answer: (B), (D)

Refractive Index

Explanation for the correct option:

Extensive properties:

• Extensive properties are those properties that depend upon the amount of substance present in the system.
• Some examples of extensive properties are internal energy, surface entropy, etc.
• The total value of an extensive property is equal to the sum of the values for the separate parts into which the system may, for convenience, be divided.

Intensive properties:

• Intensive properties are those properties that are independent of the amount of substance present in the system.
• Some examples of the intensive property are Pressure, temperature, density, surface tension, etc
• All these properties are characteristics of the substance but independent of their amount.

Option (B) Temperature

• Temperature is an Intensive property because it does not depend upon the amount of substance present in the system.
• Hence, Option (B) Temperature is correct.

Option (D) Refractive index

• Mass is an intensive property since it is independent of the amount of a substance.
• Hence, Option (D) Refractive index is also correct.

Explanation for the incorrect options:

Option (A) Volume

• Volume is an extensive property since it depends upon the amount of a substance.
• Hence, Option (A) volume is incorrect.

Option (C) Enthalpy

• Volume is an extensive property since it depends upon the amount of a substance.
• Hence, Option (C) Enthalpy is incorrect.

Therefore, option (B) Temperature and option (D) Refractive index is the correct answer.