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Relative Humidity is the ratio of the mass of vapour present in a certain volume of air to the mass of water vapour required to saturate the same volume of air at the same temperature.
Another way of defining relative humidity is related to dew point.
I.e relative humidity=s.v.p at dew point over s.v.p at air temperature multiply by 100%.
And dew point is dependent upon prevalent atmospheric conditions like TEMPERATURE,wind and the amount of water vapour in the atmosphere.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agothe amount of humidity will decrease, because humidity is the amount of water vapor present in the air and water vapor is caused by heat or the rise of temperature.
God Bless :)
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What happens to air pressure when air humidity increases and temperature stays the same?
It will remain the same. (:
What is humid air filled of mostly?
Humid Air. Humidity is the amount of water vapor (Water vapor is the same thing as water gas.) that is in the air. (When one speaks of how humid air is or the humidity in air, one does not count water in the form of droplets, such as the droplets in fog or in a cloud or in steam.) We say the air is humid if there is a lot of water vapor in the air. When there is very little water vapor, then we say the air is dry or it is not humid or we say the humidity is low. Dry air consists of approximately 78% nitrogen, 21% oxygen, 1% argon, .04% carbon dioxide. Besides those gasses, there is another .04% of hydrogen, methane, neon, krypton and other naturally occurring gases. (These are percent by volume, not by weight.) This is a remarkably uniform mixture the world over although the carbon dioxide content has been increasing. The amount of water in the air varies greatly with the average being about 1% by volume. At a normal temperature, for instance 25 C (about 77 F) the air can not hold more than about 4%. (In a kilogram of air, at 25 C, the maximum amount of water is 2 grams.) This means that there is always more nitrogen and oxygen in the air than there is water, even when it is raining. There is no particular amount of water in the air that decides whether one says the air is humid or dry. Because the amount of water vapor that can be in the air depends very much on temperature and pressure, one can not make a general statement about how much water is contained in humid air. Humidity as a number: To be very precise about the quantity of water in air one usually speak of absolute humidity and relative humidity. Absolute humidity is defined as the number of grams of water per cubic meter of air and that number typically varies from zero to about 30 grams. Relative humidity is defined as the percent of water in the air compared to the maximum amount of water that the air could contain at the same temperature and pressure. Thus, relative humidity varies from zero to 100 percent and what constitutes 100% varies a great deal with temperature and pressure.
What conditions in the air favor condensation of water?
saturated air and dewpoint temperature much lower than air temperature
How would temperature and humidity at a given location change when a maritime tropical air mass is replaced by a continental polar air mass?
The temperature would go from being in the 80s and 90s to the 60s and 50s due to the coldness of the polar air. The temperature would decrease. The humidity would decrease also because it goes from being warm and moist to cold and dry.
Clouds release moisture on what side of the mountain?
The windward side of a mountain tends to have winds ascending it which leads to expansion in the air, a drop in temperature, cooling ,rise in relative humidity and condensation. The water vapor gets carried by the wind and leads to cloud formation and rainfall.
What is the amount of water vapor in the air compared to the amount that could be in the air at that temperature?
relative humidity
What is the relative humidity of a blizzard?
There is a lot of water content in a blizzard but styli the air temperature is warmer than the dew point temperature so even though there is a blizzard the relative humidity is less than 100% and will depend on how dry the air is
What is relative humidity in terms of moisture and temperature?
relative humidity is the amount of moisture that air can hold in a certain temperature
How are humidity and water vapor related?
Relative humidity is directly related to the amount of water vapor in air, and that's the relationship. The more water vapor that is in the air, the higher the relative humidity at a given temperature.
What term refers to the temperature at which the relative humidity is 100?
That would be "dewpoint"...When the air temperature falls to the dewpoint (or dewpoint rises to the air temperature), then you have 100% relative humidity.
Is a measure of water vapor in the air compared to the amount that could be held at a specific temperature?
This is the measure of relative humidity. At 50 percent relative humidity, the air is holding half of what it could. It is relative humidity because it is related to the temperature and pressure of the air.
What is the measure of water vapor in the air compared to the amount could be held at a specific temperature?
This is the measure of relative humidity. At 50 percent relative humidity, the air is holding half of what it could. It is relative humidity because it is related to the temperature and pressure of the air.
What is the percentage of humidity?
The short answer is the maximum percentage of humidity in the air at any temperature is 100%. The percentage of humidity or relative humidity of air is the percent of the maximum humidity or amount of water that the air can hold at any given temperature. Therefore if the relative humidity is 80 per cent at 20 degrees and then the air cools off to 18 degrees the relative humidity goes up even though the amount of humidity or water in the air stays the same. If the temperature continues to drop the relative humidity will continue to rise. Since cool air can hold less air than warm air the relative humidity will eventually reach 100%. If the temperature continues to fall the relative humidity will remain at 100% and water will come out of the air as precipitation.
What is the Apparent Temperature when the Air Temperature is 80 F and the Relative Humidity is 30 percent?
The heat index can be calculated when the air temperature is greater then 80F and the relative humidity is at least 40%.
If the air temperature stays the samewhat happens to the relative humidity when the amount of moisture increases?
Relative humidity increases.
If the amount of moisture stays the samewhat happens to the relative humidity when the air temperature decreases?
relative humidity increases. at a lower temperature, the air can hold less water vapour.
How can relative humidity and dew point be used to predict the weather?
Relative humidity expresses a percentage of humidity in the air to the maximum amount of humidity that could be in the air. For example: when the temperature rises the air will be able to hold much more humidity so the relative humidity will drop.
