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Title: A reversible engine operating between 500 K and 300 K has the same efficiency as Post by: ppk on Mar 7, 2012 A reversible engine operating between 500 K and 300 K has the same efficiency as a reversible engine operating between 400 K and what lower temperature?
A) 200 K B) 220 K C) 240 K D) 260 K E) 280 K |