Reversible Process

Reversible Process

A reversible process is one in which no dissipative phenomena occur. The effects of
viscosity, thermal conductivity and mass diffusion are absent. Hence all the states
of the system pass through quasi-static process, i.e., a succession of equilibrium
states.
If the system passes through a series of non-equilibrium states during a process
where effects of viscosity, thermal conductivity and mass diffusion are present,
then the process is called irreversible.