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Relative humidity is reported in percentages. The percentage relates to the amount of water vapor air of a given temperature holds when it is saturated. So the humidity is reported as 50%, if the amount of water vapor in the air is half of what the air could hold at its current temperature.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoRelative Humidity is a measure of moisture in the air relative to the temperature of the air. It is reported as a percentage. By the use of a psychrometer the relative humidity can be determined.
The psychrometer has two thermometers attached to a sling one dry and one wrapped in a wicking material to keep it wet. By sling the psychrometer in the ambient air the wet bulb evaporates moisture and lowers the wet bulb temperature, this temperature is known as the dew point. The dew point is the temperature at which the air would be saturated with moisture and begin precipitating. By comparing this dewpoint with the dry bulb temperature (actual ambient air temperature) the relative humidity can be determined.
The formula for determining relative humidity is: (Formula is in degrees F)
RH = (WBT-32F) / (DBT -32F) this yields a percentage of moisture in the air.
for Celsius RH = WBT/DBT
Example:
WBT = 72F (22.22C)
DBT = 85F (29.44C)
(72-32)/(85-32) = 40/53 = ~ 75.5% RH
22.22/29.44 = ~ 75.5 % RH
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When the air is holding a small amount of water what kind of humidity does it have?
This is called the Airs "Relative" humidity. The more water vapor in the atmosphere the higher the relative humidity will be.
What would happen to the relative humidity value if the temperature increased to 25 degrees?
If nothing else changes, the relative humidity will fall.
What is the purpose of the psychrometer?
The purpose of the psychrometer is to estimate Relative Humidity of Air. It does it by getting the dry and wet bulb temperatures. Then Relative Humidity is read on a chart.
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.
What is the device called that measures relative humidity?
A hygrometer measures humidity. Don't confuse it with a hydrometer which measures density.
When the relative humidity of the air is reported as being high then what do we feel?
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Which is the comparison of the amount of moisture in the air to the amount of moisture it can hold?
relative humidity
Amount of moisture in air compared to amount needed in saturation?
Relative humidity.
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 should the low and high end for humidity temperatures for your home?
30 to 50% of Relative humidity - the relative part of relative humidity being relative to the temperature.
What is the average humidity in baton rouge la US?
Average Relative Humidity: Baton Rouge Relative Humidity (Morning) 89% Baton Rouge Relative Humidity (Afternoon) 62%
The actual humidity divided by the saturation humidity is the?
relative humidity
What term is defined as the amount of water vapor in the air compared to the amount of water that the air can hold?
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.
Relationship between evaporation and relative humidity?
The higher the relative humidity is the lower rate of evaporation.
How to use relative humidity in a sentence?
Relative humidity means the percentage of water vapor in the air compared to the total amount that could be contained. This is different at different temperatures. Here are a couple of sentences.The relative humidity is 10 percent.We studied relative humidity in class.
How does relative humidity work?
Relative humidity work with the amount of moist and water vapor that is all together.and that how all the vapor that is all together and that the type of moist that what call the relative humidity.
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.
