Physics · Thermodynamics
Examine the following statements: (i) Work is high-grade energy. (ii) It is possible for a heat engine to produce net work in a complete cycle by exchanging heat with bodies at a single uniform temperature. (iii) It is impossible to construct a device which, operating in a cycle, will produce no other effect than the transfer of heat from a cooler to a hotter body. Which of these statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Statements (ii) and (iii) are correct
- 2Statements (i) and (iii) are correct✓
- 3All statements are correct
- 4All statements are wrong
Correct answer
Statements (i) and (iii) are correct
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