35. when we are hot, our body automatically increases the rate of perspiration. helps our body to cool down, mainly because: (a) The more liquid (water) we loose, the less mass remains in the body, and therefore total internal energy of the body decreases. (b) The sweat evaporates, and it takes the heat of evaporation from our body. (c) The relative humidity in the vicinity of our body increases, causing the skin to "feel" colder even though temperature has not decreased. (d) Sweat is hot, therefore as body losses it, we feel colder.
35. when we are hot, our body automatically increases the rate of perspiration. helps our body to cool down, mainly because: (a) The more liquid (water) we loose, the less mass remains in the body, and therefore total internal energy of the body decreases. (b) The sweat evaporates, and it takes the heat of evaporation from our body. (c) The relative humidity in the vicinity of our body increases, causing the skin to "feel" colder even though temperature has not decreased. (d) Sweat is hot, therefore as body losses it, we feel colder.
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter20: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 20.7OQ: The specific heat of substance A is greater than that of substance B. Both A and B are at the same...
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