Estimate the maximum efficiency of a thermodynamic engine that is powered by this temperature difference in moderate climate conditions (the living organism is the hot reservoir and the environment is the cold reservoir). take the temperature of the human body about 37∘c and assume a temperature of 8 ∘c for the environment.
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is the temperature of the cold reservoir, and 
is the temperature of the hot reservoir, therefore
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Estimate the maximum efficiency of a thermodynamic engine that is powered by this temperature differ...
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