Question 05: Distinguish between reversible process and irreversible process.
Answer:
| Reversible Process | Irreversible Process |
| 1. A thermodynamic process in which any sort of change in the external condition, starting from a given initial condition can be brought back in the opposite direction so that, the working substance passes through exactly the same state in all respect is known as reversible process. | 1. The thermodynamics process, in which the working substance does not remain its original state after it changes thermodynamically, is called irreversible process. |
| 2. The process is slow. | 2. The process is rapid. |
| 3. It is a kind of spontaneous process. | 3. It is not a kind of spontaneous process. |
| 4. In reversible process thermodynamic system maintains equilibrium. | 4. In irreversible process thermodynamic system does not maintain equilibrium. |
| 5. In the thermodynamic system undergoing this change no loss is observed. | 5. While undergoing irreversible change, the irrecoverable loss is observed. |
| 6. The entropy remains constant in reversible process. | 6. The entropy increases in irreversible process. |
