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When the relative humidity is 100 percent the air temperature is equal to the dew point temperature?
Wiki User
∙ 12y ago
Yes.
Wiki User
∙ 12y ago
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What is the temperature when snow falls when humidity air cools below and what degree.?
As snow falls it will evaporate if the surrounding air is drier, and the energy required to turn water or ice into a gas is taken from that air and the air cools. Eventually it cools to saturation, where the temperature and dew point are equal or very nearly so. This temperature - where the dew point and temperature "meet" if you increase the relative humidity to saturation - is the wet bulb temperature.
What percent is 78 equal to?
78 percent = 0.78
What does 110 equal as a percentage?
It depends on what is a percent of, if its a percent of 100 then if would be 110%
What is the temprerature of mercury?
Equal to the temperature where you store it.
How much is 1 percent per foot equal to?
1 percent of a foot is 0,3048 cm.
When air is cooled what happens to Relative Humidity?
Yes. Relative humidity is the amount of water vapor actually in the air compared to the amount that could be in the air (saturation point) at the exisiting temperature. So, if the temperature of the air changes and the amount of water vapor in it does not, the relative humidity will be different. But, if the temperature of the air changes and so does the amount of water vapor in it, then the relative humidity could be the same as before the temperature change. That is to say that the air could contain the same percentage of water vapor that it could hold at each temperature, even though the actual amounts are different.
When wet bulb temperature and dry bulb temperature are equal?
for air water system wet bulb equals to dry bulb at 100 % relative humidity for that given temperature of air.
What happens when the air temperature and the dew point temperature are close together?
When both come closer,relative humidity increases;When they are almost equal,condensation water vapour begins.
Why is the dew point never the same?
The dew point is the temperature at which a given parcel of humid air must be cooled, at constant barometric pressure, for water vapor to condense into water. The condensed water is called dew. The dew point is a saturation temperature.The dew point is associated with relative humidity. A high relative-humidity indicates that the dew point is closer to the current air temperature. Relative humidity of 100% indicates the dew point is equal to the current temperature and the air is maximally saturated with water. When the dew point remains constant and temperature increases, relative humidity will decreaseTherefore, by the above stated reasons (of humidity and barometric pressure and saturation based on temperature) are all reasons the point at wick dew forms is not the same because the regions them selves vary and thus these relative factors maybe dissimilar.
Define relative humidity?
Water can "dissolve" in air. As the temperature and pressure of air goes up, the amount of water that can be held in the air increases. We can measure the "absolute" humidity of air, but this isn't especially useful. It is more handy to know hoe much water is IN the air, as a percentage of the amount of water the air COULD hold. That's "relative humidity". It is important because as the temperature rises, the air COULD hold more water, so the relative humidity falls. As the temperature falls, the relative humidity rises. As the air cools, when the air couldn't possibly hold any more water than it has now, the relative humidity is 100%, and we call this the "dew point", when dew will begin to settle onto the grass. If the air gets much colder, the water will condense out of the air and form FOG.
What is the temperature when snow falls when humidity air cools below and what degree?
As snow falls it will evaporate if the surrounding air is drier, and the energy required to turn water or ice into a gas is taken from that air and the air cools. Eventually it cools to saturation, where the temperature and dew point are equal or very nearly so. This temperature - where the dew point and temperature "meet" if you increase the relative humidity to saturation - is the wet bulb temperature.
What is the temperature when snow falls when humidity air cools below and what degree.?
As snow falls it will evaporate if the surrounding air is drier, and the energy required to turn water or ice into a gas is taken from that air and the air cools. Eventually it cools to saturation, where the temperature and dew point are equal or very nearly so. This temperature - where the dew point and temperature "meet" if you increase the relative humidity to saturation - is the wet bulb temperature.
At what temperature can a person see his breath?
When you breath out, you always breath out water vapor along with air. However, you can't usually see the water vapor because the water molecules are not close enough to form individual droplets. Individual droplets can be seen at the dewpoint.The dew point is associated with relative humidity. A high relative humidity indicates that the dew point is closer to the current air temperature. If the relative humidity is 100%, the dew point is equal to the current temperature.Cool air can hold less moisture, which is why dew forms on the ground overnight, when the air cools.Back to your question:If the air has a higher humidity, you'll be able to see your breath at a higher temperature.If the air has low humidity, it will take a cooler temperature to be able to see your breath.This is why you can see your breath in the winter much more easily than in the summer.
What happens when temperature and dew point are equal?
This is the point at which saturation occurs. This is also signifies 100% relative humidity. If you want to find out how close it is to reaching saturation, all you have to do is find actual vapor pressure (found by temp.), and saturation vapor pressure(found by dewpoint). You can look online for conversion charts. Once you find them, plug them into this equation: actual vapor pressure/saturation vapor pressure x 100%. Your answer should be a percentage. If it's around 60-80 percent, then you know it's cold, and there is high humidity; thus, saturation is likely to occur. If it's around 10-30 percent, then you know the humidity is low and saturation is not likely occur. Warm weather= low humidity Cold weather= high humidity.
Is mole percent of a gas is equal to its volume percent?
Yes - as long as the pressure and temperature are constant.
Why is the percent increase from forty five to seventy five not equal to the percent decrease from Seventy five to forty five?
Because percentage changes increases or decreases - are calculated relative to the starting value, which appears as the denominator in the calculations. In the above example, the increase will be relative to 45 whereas the decrease will be relative to 75.
How can relative humidity be measured?
HiThe problem with explaining humidity, is its relation ship to human life. Nobody is really interested until it affect them. The simplest way to describe relative humidity is at 100% the human body can not evaporate body sweat, and a person feels muggy. At 45% a person will feel the most comfortable. And to understand humidity the hotter the air, the more water it can contain. Humidifiers can help indoors to get an acceptable percentage, to make life comfortable.I hope this helped.
