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The following physics responses are provided by a student and, as such, should be considered in that context. While every effort is made for accuracy, absolute correctness cannot be fully guaranteed.
| Question | |
C | 12 |
I | |
Question According to the second law of thermodynamics, which of the following applies to the heat received from a high temperature reservoir by a heat engine operating in a complete cycle?
1) must be completely converted to work
2) equals the entropy increase
3) converted completely into internal energy
4) cannot be completely converted to work
5) equals the entropy decrease | |
Answer cannot be completely converted to work | |
Notes
| User | Added | Note | e | d |
|---|---|---|---|---|
| KillGorack | 2023-07-11 18:52:31 | According to the Second Law of Thermodynamics, heat energy cannot be completely converted into work in a cyclic process. There will always be some heat energy that is transferred to a colder reservoir. This is a statement of the impossibility of a perfect heat engine, i.e., a theoretical engine that converts 100% of heat into work without any waste energy. Therefore, the correct option is: cannot be completely converted to work |
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