Animation of a closed non-uniform system going through a non-mixing process. The beginning-state is composed of two states bA and bB states (non-uniform). As heat or work (not shown here) is exchanged between the two subsystems, the overall system goes through a process. When equilibrium is finally achieved, two states -fA and fB states - are necessary to describe the final state. In a non-mixing system there is no mass exchange among the subsystems. For specific examples of non-mixing closed processes, visit TEST>Animations>Chapter-5 pages.
