What are the properties of a system?

 PROPERTIES OF SYSTEM 

Any characteristic of a system by which its physical condition is defined called as property pressure, temperature, volume, mass, viscosity, thermal conductivity, modulus of elasticity thermal expansion coefficient, electrical resistivity, velocity, elevation, etc. 

Are the example of the properties of a system. Properties may be either intensive or extensive.

Intensive properties : are those that are independent of the mass of a system, such as temperature, pressure, and density.

Extensive properties : are those whose values depend on the size or extent of the system. Total mass, total volume, and total momentum are some examples of extensive properties. 

Extensive properties per unit mass are called specific properties.

THERMODYNAMICS BOOK