The process goes through infinite change so, it takes infinite time to complete.
The process goes through finite change so, it takes finite time to complete.
The process proceeds infinitesimally slowly maintaining the equation state.
This process is faster; the equilibrium state is maintained only at initial& final position of system.
During the state change it is in equilibrium state at all stages
It is not in equilibrium state during the state change, driving force is always greater than opposing force.
This process in only an assumption and impracticable.
This process is real and practicable.
Work done by this process is more if the process is possible to carry out
Work done is always less than reversible process
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