Please explain the differences between point function and path function by using examples in

Thermodynamics.

Point function: The property only depends on the thermodynamic states of the system undergoes a process

$($or cycle$),$ but not the path. For example, temperature, internal energy, specific volume. $o{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}dT=0$

Path function: The property depends on the path chosen during the process. For example, work done by a

piston$-$cylinder system to the environment, i$.$e$.$ pV work. $o{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}W0$ in general.