1
$\begingroup$

I want to ask the difference between Cyclic Process and Reversible Process.

Consider this graph: enter image description here

If we have a process that goes from A to B then go back to A through the same path, then will it be called a Cyclic Process or Reversible Process or Both?

$\endgroup$
5
$\begingroup$

The key concept in a reversible process is that the system is in equilibrium with it's surroundings at every instant. A cyclic process is different: in a cyclic process, the initial and final state are the same.

The graph that you have drawn consists of a reversible isothermal expansion(AB) and a reversible isothermal contraction(BA). Overall, the process A->B->A is a cyclic process made up of two reversible processes.

$\endgroup$
2
  • 4
    $\begingroup$ I would add that a cyclic process does not have to be reversible. The only requirement is that the initial and final states of the system are the same. $\endgroup$ Jul 23 '20 at 14:56
  • $\begingroup$ Thanks, I got it! $\endgroup$
    – Kartik
    Jul 23 '20 at 15:34

Not the answer you're looking for? Browse other questions tagged or ask your own question.