Living · 6 pages · 12 min
Why sweat that does not evaporate fails
If sweat stays liquid or drips away, almost none of the heat leaves with it.
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From the opening
Sweat that never evaporates fails as cooling because the heat leaves with the vapor, not with the liquid. Water that pools on the skin or runs off has skipped the phase change that absorbs latent heat. The opening covers humid air has little room for vapor, drips remove water but not the heat, and sealed clothing stops the phase change.
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Inside
- Humid air has little room for vapor
- Drips remove water but not the heat
- Sealed clothing stops the phase change
- Wet skin can still keep heating
- Where the idea stops applying
- A distinction worth keeping
Sources
- Latent heat as the reason evaporation cools
- Humidity and blocked vapor movement as limits on sweat