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A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?
13 years ago

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Elena
T⒣=273+680=953K
T⒞ = 273+220=493K

η ==1- T⒞/T⒣=1 – (493/953)=0.483
13 years ago

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