A 67.5-kg person typically eats about 2250 kcal per day, 21.0% of which goes to mechanical energy and the rest to heat. If she spends most of her time in her apartment at 24.0°C, what is the entropy change AS of her apartment in one day? AS = kJ/K Does the entropy of the apartment increase or decrease? It decreases, because the person's entropy increases, and the net entropy change of the person and apartment is zero. It increases, because the entropy of each and every object involved in an irreversible isothermal process increases. It decreases, because the temperature of the apartment is lower than that of the person, assuming normal body temperature. It increases, because the apartment receives heat from the person, meaning the heat transfer into the apartment is positive.

A 67.5-kg person typically eats about 2250 kcal per day, 21.0% of which goes to mechanical energy and the rest to heat. If she spends most of her time in her apartment at 24.0°C, what is the entropy change AS of her apartment in one day? AS = kJ/K Does the entropy of the apartment increase or decrease? It decreases, because the person's entropy increases, and the net entropy change of the person and apartment is zero. It increases, because the entropy of each and every object involved in an irreversible isothermal process increases. It decreases, because the temperature of the apartment is lower than that of the person, assuming normal body temperature. It increases, because the apartment receives heat from the person, meaning the heat transfer into the apartment is positive.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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