Write the formula and unit of volume stress. Can volume stress be a pressure?

(N/A) Volume stress is defined as the restoring force per unit area acting on a body when its volume changes.
Formula: $\sigma_{V} = \frac{F}{A} = P$,where $F$ is the force acting normally on the surface area $A$,and $P$ is the pressure applied.
Unit: The $SI$ unit of volume stress is the same as pressure,which is $N \ m^{-2}$ or $Pa$ (Pascal).
Yes,volume stress is equivalent to pressure because it is defined as the force applied per unit area perpendicular to the surface.