Entropy of Metabolism. An average sleeping person
Chapter 20, Problem 20.38(choose chapter or problem)
Entropy of Metabolism. An average sleeping person metabolizes at a rate of about 80 W by digesting food or burning fat. Typically, 20% of this energy goes into bodily functions, such as cell repair, pumping blood, and other uses of mechanical energy, while the rest goes to heat. Most people get rid of all this excess heat by transferring it (by conduction and the flow of blood) to the surface of the body, where it is radiated away. The normal internal temperature of the body (where the metabolism takes place) is 37C, and the skin is typically 7 C cooler. By how much does the persons entropy change per second due to this heat transfer?
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