Entropy MCQs Online Practice Test Quiz

1. Which statement is accurate regarding entropy changes?

2. In an isolated system, entropy can never ____

3. How can the local decrease of entropy in a region within an isolated system be explained?

4. According to Clausius, how can the first and second laws of thermodynamics be summarized?

5. In an isolated system, entropy always ____ and reaches a ____ at equilibrium.

6. Which of these scenarios exemplifies an application of the entropy principle?

7. What is the possible range of final temperatures when two bodies, initially at temperatures T1 and T2, come to thermal equilibrium?

8. Which process demonstrates external mechanical irreversibility?

9. The integral of dQ/T along a reversible path is represented as:

10. Entropy is classified as:

11. The specific entropy, where m represents mass, is expressed as:

12. For any process undergone by a system, which of the following inequality holds true?

13. In a reversible process, which equation correctly represents the change in entropy?

14. In an irreversible process, which relation describes the change in entropy?

15. For two different paths between the same two points, the entropy change is:

16. In the general case, which inequality correctly expresses the change in entropy (S2 - S1) compared to the heat transfer (dQ) divided by temperature (T) along a path?

17. When two equilibrium states are infinitesimally close, which relationship correctly describes the change in entropy (dS) compared to the heat transfer (dQ) divided by temperature (T)?

18. Entropy varies ____________ with the extent of reversibility.

19. The change in entropy depends on which of the following?

20. What term describes the level of randomness or disorder within a system?