Question

How to decide it is extensive property and intensive property?

Answer 1

......................

Answer 2

Intensive property are independent of mass
while extensive property depends upon mass.

So for finding a quantity whether it is intensive or extensive, u have to look for mass.

Example -

1. Force

Force = ma
here we can see that it depends on mass therefore force is Extensive property.

2. Temperature
it is independent of mass therefore it is intensive property