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ppk ppk
wrote...
Valued Member
On Hiatus
Posts: 3561
12 years ago
A certain engine extracts 1300 J of heat from a hot temperature reservoir and discharges 700 J of heat to a cold temperature reservoir. What is the efficiency of this engine?
A) 46%
B) 54%
C) 86%
D) 27%
E) 13%
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