Which of the following is not a property of a thermodynamic system?

Explanation: 

A thermodynamic property is any property that is measurable, and whose value describes a state of a the system. Some e.g of the thermodynamic property are pressure, temperature, viscosity, density. Properties are point function i.e. these does not depend on the path followed. Out of given options heat is the path function so it can’t be a property of the system.

Additional Information

Intensive Property: These are the properties of the system which are independent of mass under consideration.

e.g. Pressure, Temperature, density, Specific enthalpy etc.

Extensive Properties: The properties which depend on the mass of the system under consideration.

e.g Volume, Internal Energy, Enthalpy, Entropy etc.