MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following explains that there is no entropy transfer associated with work. |
| A. | working of flywheel |
| B. | compression of spring |
| C. | raising of weight by a certain height |
| D. | all of the mentioned |
| Answer» E. | |
| 2. |
The first law of thermodynamics makes no distinction between heat transfer and work. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 3. |
WHICH_OF_THE_FOLLOWING_EXPLAINS_THAT_THERE_IS_NO_ENTROPY_TRANSFER_ASSOCIATED_WITH_WORK.?$ |
| A. | working of flywheel |
| B. | compression of spring |
| C. | raising of weight by a certain height |
| D. | all of the mentioned |
| Answer» E. | |
| 4. |
The first law of thermodynamics makes no distinction between heat transfer and work? |
| A. | true |
| B. | false |
| Answer» B. false | |
| 5. |
What happens when heat is added to the system? |
| A. | dQ is positive |
| B. | dS=dQ/T |
| C. | entropy of the system increases |
| D. | all of the mentioned |
| Answer» E. | |
| 6. |
The entropy of a system ____ by ____ when the mass of amount m enters it. |
| A. | decreases, ms |
| B. | increases, ms |
| C. | decreases, s/m |
| D. | increases, s/m |
| Answer» C. decreases, s/m | |
| 7. |
Mass contains |
| A. | entropy |
| B. | energy |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
____ is exchanged during work interaction, whereas both ____ and ____ are exchanged during heat transfer. |
| A. | energy, energy and entropy |
| B. | entropy, energy and entropy |
| C. | mass, energy and entropy |
| D. | none of the mentioned |
| Answer» B. entropy, energy and entropy | |
| 9. |
The sign of entropy transfer is opposite to the sign of heat transfer. |
| A. | true |
| B. | false |
| Answer» C. | |
| 10. |
If heat Q flows reversibly from the system to the surroundings at To, |
| A. | entropy increase of the surroundings is Q/To |
| B. | entropy of the system is reduced by Q/To |
| C. | system has lost entropy to the surroundings |
| D. | all of the mentioned |
| Answer» E. | |
| 11. |
Entropy transfer for an adiabatic transfer is zero. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 12. |
Entropy can be transferred to or from a system in which of the following forms? |
| A. | heat transfer |
| B. | mass flow |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |