Question #ecbbb

1 Answer
G_Ozdilek
Apr 4, 2017

24.99%%

Explanation:

Efficiency of a carnot engine is expressed with #100*(1-((TC)/(TH)))# where TH is the temperature of the hot reservoir and TC is the temperature of the cold reservoir. Temperatures must be given in Kelvin.

When you put 127 (400.15 K) degrees for TH and 27 (300.15 K) degrees for TC, you will get efficiency:

#E=100*(1-(300.15/400.15))=24.99%#

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