Question

Which of the following pair does show the extensive properties?

• A. Temperature and pressure
• B. Viscosity and surface tension
• C. Refractive index and specific heat
• D. Volume and heat capacity

Answer 1

Answer: (C)

Refractive index and specific heat

An extensive property is a property of matter that changes as the amount of matter changes. Specific heat capacity is an intensive property. No matter how much aluminum you have, its ability to absorb heat energy at a particular temperature is the same.The same goes for refractive index. For a homogeneous material ie. with equal density of the particles all over the area, therefractive index will be constant irrespective of its size or shape. Hence, theoretically refractive index is a intensive property.