McqMate

Q. |
## For any reversible process, the change in entropy of the system & surroundings is |

A. | zero |

B. | unity |

C. | negative |

D. | positive |

Answer» A. zero |

4.6k

0

Do you find this helpful?

25

View all MCQs in

Engineering ThermodynamicsNo comments yet

- According to entropy principle, the entropy of an isolated system can never decrease and remains constant only when the process is reversible.
- The entropy increase due to internal irreversibility is also called entropy production or entropy generation.
- 1.6 Kg of air is expanded at constant pressure from 100°C to 0°C resulting in entropy change of - 2.0 J/K 3.2 Kg of air is cooled at constant volume from 100°C to 0°C with a change in entropy of -3.0 J/K. The ratio Cp/ Cv is
- For a reversible adiabatic process, the change in entropy is
- In a reversible cycle, the entropy of the system
- One reversible heat engine operates between 1600 K & T₂ K & another reversible heat engine operates between T₂ K & 400 K. If both the engines have the temperature T₂ must be equal to
- For any irreversible process the net entropy change is
- A process which can be stopped at any stage & reversed so that the system & the surroundings are exactly restored to their initial states is known as
- The rate of entropy increase of the control volume or the net rate of entropy transfer to it.
- The rate at which entropy is transferred out must the rate at which entropy enters the control volume.