Question

When a specific property is multiplied by the mass of the system the results is always an intensive property. a)True b) False

Answer 1

b). False

Step-by-step explanation:

Thermodynamic property are of two types

1. Intensive property

2.Extensive property

Intensive properties are those properties that do not depend on mass. For example, Specific volume, temperature, specific heat capacity,density etc

Extensive properties are those properties which depends on mass.

For example, volume, heat capacity, etc.

Now when a specific property (intensive property) is multiplied with mass of the system, we get extensive property .

We know that density is an extensive property having unit of kg per meter cube.

Now the reciprocal of density is specific volume which is also an extensive property having unit of meter cube per kg.

Now if we multiply the specific volume with the mass we get volume which is an extensive property and not an intensive property.

Thus, we get extensive property when we multiply mass to any specific or intensive property.