Dry air cools much faster than humid air. Think about a desert...they are frequently over 100 degrees in the daytime, but have night temperatures that can drop into the 40s, even in the summer. In tropical climates, where the humidity is very high, daytime temperatures are usually in the 90s, but night temperatures rarely drop below 70. Moisture in the air prevents what is known as "radiational cooling" from having as much of an impact. The dryer the air, the greater the diurnal (within one day) temperature swings.
2007-10-15 23:22:00
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answer #1
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answered by RICHARD C 2
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I don't know how humidity affects the cooling of air, although I do know that the specific temperature of water is fairly high (meaning that it takes more energy to change water's temperature), so my gut reaction would be that humid air cools more slowly. But that's all it is -- a gut feeling. Please don't take that for a test.
In the atmosphere, warm air rises and cools off, then sinking back down, where it is warmed again. This is an air current.
Dew point is lower at lower temperatures.
2007-10-15 09:29:44
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answer #2
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answered by Grae 2
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Dry air will cool faster.Because,warm air always contains some moisture and this moisture,when cooled, condenses into water at a particular temperature.This condensation releases latent heat of condensation which tries to keep the humid air warmer.So it takes more times to get cooled.
2007-10-17 18:28:46
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answer #3
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answered by Arasan 7
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Dry air, because the latent heat of water will keep the air / air mass warmer than a dry air mass. Dryer air (continental air mass) is much colder than humid air (maritime). The water contained in humid air keeps the air warmer because it is saturated with a heat source (water), whereas dry air is not.
2007-10-15 11:18:03
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answer #4
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answered by Dr. Doss 1
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You maximum actually experience less warm popping out into ninety^ F dry air. This result's in actuality through enthalpy gradient formed via the adaptation in water potentials between dry air and humid air. once you step out of a pool into humid air (inspite of the temperature), the pool-water on your epidermis does not evaporate (at a serious fee) through fact the gradient isn't super adequate. yet once you step out into dry air, the pool-water starts off to evaporates in the present day through huge gradient. yet that isn't all, elevating the temperature of water demands a reasonably super quantity of power according to mass (approximately 4.18 J/g to enhance the temp from 14.5^ C to fifteen.5^C), and on your case this power is taken out of your physique warmth, so in turn you experience less warm.
2016-11-08 10:09:57
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answer #5
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answered by joerling 4
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humid air cools faster because it contains more liquid particles than dry air. thus, it takes lesser time for it to cool because dry air will use more time converting gaseous particles to liquid particles before it even starts to cool down.
2007-10-15 11:46:28
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answer #6
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answered by noel n 1
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is your science teacher by any chance called mr.o'hara?
2007-10-15 10:20:42
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answer #7
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answered by someone_else 2
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