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What is the percentage of the maximum amount of water vapor the air could hold?
Wiki User
∙ 8y ago
relative humidity
Wiki User
∙ 8y ago
Anonymous
55 Fahrenheits
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What is the relative humidity when Air temperature is at its dew point?
It is 100%.
What is the meanig of humid?
Humidity is the amount of water vapor in the air. Humidity is usually expressed as a percentage of the maximum that the air could hold at that temperature.
What is humudity?
humidity is water vapor in the atmosphere that makes the weather feel hotter than it really is
What humidity is the amount of water vapor in the air compared to the amount of water vapor air can hold at a certain temperature?
Relative humidity is a comparison of the amount of moisture that air is holding compared to the maximum amount it could hold at a given temperature. If it's holding all that it can, the relative humidity is 100%.
What weather factor is a hygrometer use for?
Hygrometers measure the relative humidity of the atmosphere. The relative humidity is the ratio between the present water vapor content of the air and the maximum amount of water vapor the air could hold at the same temperature. Cool air will not hold as much water vapor as warmer air. With the same amount of moisture in the air, an increase in temperature decreases the relative humidity, and if the temperature drops, relative humidity increases.
What happens when air is humid?
Humidity (relative) is the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure. So pretty much the air is moist and heavy.
How is Relative Humidity Determined?
Is the percentage of water vapor that is actually in the air compared to the maximum amount of water vapor the air can hold at a particular temperature.
What relative humidity is a comparison between?
The current water vapor content of the air (in question) AND the maximum amount of water vapor that it could carry.
What is the proportion of water vapor present in a parcel of air relative to the maximum amount of water vapor that could be present in the air at the same temperature?
The relative humidity.
Relative humidity is always expressed?
Yes. It is the percentage of the maximum water vapor content for a given temperature.
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.
What is the vapor present in the air at a given temperature compared to the maximum amount that the air could hold at that temperature is called?
In the context of water vapour, it is "relative humidity".
What does relative humidity measure?
Relative Humidity is actually measure the amount of moisture in the air. It depends on how much of the air has water in it. Let's say that the RH is 50%, that means 50% of the air has water in it.
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 do you call the amount of water vapor that the air can hold?
It is the maximum humidity, expressed as the saturation point for a given temperature.
What is the relative humidity when Air temperature is at its dew point?
It is 100%.
What does it mean for the relative humidity of an air mass to be 70?
Let's do a quick review of some facts about water vapor in air, and then we'll tackle this question. An air mass will have a given temperature and a given pressure. For air of a given temperature and pressure, only a certain amount of water vapor can be "suspended" in that air before it begins to condense and precipitate out (as rain, snow or something else). When the amount of water vapor in the air is at it maximum (for whatever temperature and pressure we cite), that air has 100% of the water vapor in it that it can hold. Any more water vapor and water will condense and precipitate out, as we stated. That's all we need to know to take on this question.When we consider the amount of water vapor in a given air mass, we use a "standard" or and "index" to relate that amount of water vapor to something "fixed" to make our measurement. The reference in this case will be the maximum amount of water vapor that an air mass can hold at that temperature and pressure (whatever they are). In the case of this question, if the relative humidity of an air mass is 70%, that air mass (whatever its temperature and pressure) is holding 70% of the water vapor that it can possibly hold. Note that term we use is relative humidity. The "amount" of humidity in an air mass that has a relative humidity of 70% is 7/10ths (70%) of the amount of water vapor that it can possibly hold altogether. We've compared the amount of water vapor in the air to the maximum amount of vapor that it can hold.While it is true that an air mass may have this or that temperature and pressure, in any given air mass of whatever temperature and pressure, there is some maximum amount of water vapor that it can hold, and when we look at the amount of water vapor in that air mass, we compare it to that maximum amount that it can hold. That's relatively humidity, and when relative humidity reaches 100%, that air is saturated with water vapor and we can expect it to begin to precipitate out in the form of rain or another form of precipitation (depending on temperature and conditions aloft).It might help to note that warmer air and air at higher pressure can hold relatively more water vapor that cooler, less "pressurized" (less dense) air. But whatever the temperature and pressure of an air mass, there is some maximum amount of water vapor that it can hold, and we look at how much is in it, and compare that to the maximum amount, and call the comparison the relative humidity.
