

MCQOPTIONS
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1. |
According to Kelvin-Planck statement, it is ____ for a heat engine to produce net work in a complete cycle if it exchanges heat only with bodies at ____ |
A. | impossible, single fixed temperature |
B. | possible, changing temperature |
C. | impossible, changing temperature |
D. | possible, single fixed temperature |
Answer» B. possible, changing temperature | |