Question

A thermodynamic process is said to be reversible if:

• A. the process can be turned back such that the system and surroundings return to the original states.
• B. the process can be turned back with no change in internal energy of the system.
• C. the process can be turned back with a finite heat transfer with the surroundings over a period of time.
• D. None of the above.

Answer 1

The correct option is A the process can be turned back such that the system and surroundings return to the original states.

In thermodynamics, a reversible process is a process whose direction can be "reversed" by inducing infinitesimal changes to some property of the system via its surroundings, with no increase in entropy. Throughout the entire reversible process, the system is in thermodynamic equilibrium with its surroundings.A thermodynamic process is said to be reversible the process can be turned back such that the system and surroundings return to the original states.