Approximately 80% of the energy used by the body must be dissipated thermally. The mechanisms available to eliminate this energy are radiation, evaporation of sweat, evaporation from the lungs, conduction, and convection. In this question, we will focus on the evaporation of sweat alone, although all of these mechanisms are needed to survive. The Part A To cool the body of a jogger of mass 85 kg by 1.8°C , how much sweat has to evaporate O 220 g latent heat of vaporization of sweat at body temperature (37° C) is 2.42×106 J/kg and the specific heat of a body is approximately 3500 J/(kg - °C). O 12 g O 22 g O 120 g Submit Request Answer Part B Due to the evaporation of the jogger's sweat, the change in entropy of the universe is: O Zero O Negative O Not able to be determined with the given information O Positive

Approximately 80% of the energy used by the body must be dissipated thermally. The mechanisms available to eliminate this energy are radiation, evaporation of sweat, evaporation from the lungs, conduction, and convection. In this question, we will focus on the evaporation of sweat alone, although all of these mechanisms are needed to survive. The Part A To cool the body of a jogger of mass 85 kg by 1.8°C , how much sweat has to evaporate O 220 g latent heat of vaporization of sweat at body temperature (37° C) is 2.42×106 J/kg and the specific heat of a body is approximately 3500 J/(kg - °C). O 12 g O 22 g O 120 g Submit Request Answer Part B Due to the evaporation of the jogger's sweat, the change in entropy of the universe is: O Zero O Negative O Not able to be determined with the given information O Positive

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter1: Temperature And Heat

Section: Chapter Questions

Problem 80P: How many grams of coffee must evaporate from 350 g of coffee in a 100-g glass cup to cool the coffee...

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