Which of the following is not a state function?

Observe the following properties:
$I$. Molar volume
$II$. Mass
$III$. Internal energy
$IV$. Volume
$V$. Enthalpy
$VI$. Temperature
$VII$. Density
The intensive properties in the above list are:

An isolated system can exchange ........ with the surroundings.

Name the energy which arises due to the motion of atoms or molecules in a body. How is this energy affected when the temperature is increased?

Which of the following is not a state function?

The difference between $C_p$ and $C_v$ can be derived using the empirical relation $H = U + PV$. Calculate the difference between $C_p$ and $C_v$ for $10$ moles of an ideal gas.