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How does the evaporation of sweat work as a heat loss mechanism?

waelhammad
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2022-10-22
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How does the evaporation of sweat work as a heat loss mechanism?

  1. sweat is produced at a lower temperature than skin so cools the body by conduction.
  2. sweat promotes vasodilation which promotes heat loss by infra-red radiation.
  3. the water molecules with the greatest energy evaporate, leaving the remaining ones at a lower temperature.
  4. sweat fl ows across the skin surface so promotes heat loss by convection.
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waelhammad
2022-10-22
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C: If the most energetic water molecules depart, the remainder will have a lower average energy than before the fastest ones evaporated. This means that the temperature of the remaining sweat will be lower. 

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