How does sweat causes cooling of the body?
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That's because cooling your body via sweating relies on a principle of physics called "heat of vaporization." It takes energy to evaporate sweat off of your skin, and that energy is heat. As your excess body heat is used to convert beads of sweat into vapor, you start to cool down.
Explanation:
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Explanation:
Sweat on your skin has a specific temperature and is liquid in nature. Sweat (water) evaporates due to a differential in water vapour concentration in the ambient air. However, there is some energy required for water to evaporate, for the water molecules in the liquid phase to leap into the vapour phase. As indicated in the diagram, this energy is required to overcome surface tension and other interatomic forces.
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