0
How does air pressure affect how much water vapor air can hold?
Wiki User
∙ 16y ago
Warmer air has higher saturation mixing ratios then cold air does. So therefore because of this 100% humidity in cold air is not 100% humidity in warmer air.
The warmer the temperature, the more water vapor in the air. The colder the temperature, the less water vapor in the air.
Wiki User
∙ 11y ago
Wiki User
∙ 9y agoWater Vapor affects pressure because moist air contains many heavy gases such as O2,N2 etc. But less water vapor. Since these gases are heavier than water vapor, it becomes more dense constituting more pressure. So Moist air contains less pressure than Dry Air.
jayeeta s kitchen
Wiki User
∙ 15y agoIt does but in a complex way go to www.USAtoday.com for answers.
Wiki User
∙ 16y agoSee http://www.newton.dep.anl.gov/askasci/wea00/wea00241.htm for answer
Wiki User
∙ 14y agoit affect how much water can be evaporated into the air
Wiki User
∙ 9y agoWater vapor results to high density which makes the air less dense. Dry air weighs more than water vapor, thus air pressure is higher.
Wiki User
∙ 8y agoThe higher temperature, the more water vapor the air can hold.
Wiki User
∙ 14y agothe kind that erupts
Add your answer:
Earn +20 pts
Is high pressure moister than low pressure?
High pressure is associated with cool, dense air--which can hold LESS wator vapor than warm air. Low pressure would be "moister" than high pressure--meaning it would carry a higher percentage of water vapor or have a higher relative humidity.
What factor most affects the amount of water air can hold-?
Water vapor in the air compared to the amount of water vapor that air could hold at a given temperature.
The ratio of air's water-vapor content to its capacity to hold water vapor at that same temperature is the?
Relative humidity
What is the amount of water vapor the air IS holding compared to the amount of water vapor that the air CAN hold at that temperature?
Relative humidity
What happens to the vapor in the air when it gets cold?
I think as it gets cooler it can hold less water vapor....
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.
What is relative humidity relative to?
The ratio of a partial pressure of water vapor in an air water mixture to the saturated vapor.
Does air temperature affect humidity?
How does temperature affect humity? The mount of water vapor that air can hold depends on the temperature of the air.
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.
What does it mean for the relative humidity of an air mass to be 70 percent?
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.
Why is there a limit on the amount of water vapor the air can hold?
It takes a lot of energy to turn water into water vapor. The amount of energy that the water gains to turn into water vapor begins to be transferred into the surrounding air. If the air is willing to take on more energy the water vapor condenses quicker. This is why hot air will hold more water vapor than cold air.
What affects does humidity have?
Humidity is the measure of water in the air or other vapor. The greater the humidity, the larger the mole fraction of water in the vapor phase. Therefore less water will evaporate at constant pressure.
What happens to the airs ability to hold water vapor as the air gets?
As the air gets warmer, it's ability to hold water vapor increases.
How much relative humidity would decrease when temperature rises?
Relative humidity is a ratio between the partial pressure of water vapor and the saturation pressure of water vapor at the current temperature and pressure. If the temperature and pressure change, then the relative humidity will change also. You are correct that higher temperatures allow the atmosphere to hold more water. That means that the saturation pressure of water vapor has increased while the current vapor pressure has remained the same, causing the relative humidity to drop. We think of humidity as how hot and sticky it is outside. The closer the water vapor pressure is to its saturation point, the more hot and sticky we feel. We associate humidity with heat since that is when we are uncomfortable, but rain is caused by the relative humidity rising to 100% because the humid air cooled to the point that the saturation pressure dipped below the current vapor pressure (or other pressure changes, or a combination of both). You can learn more at the link below. I hope this helps.
Is high pressure moister than low pressure?
High pressure is associated with cool, dense air--which can hold LESS wator vapor than warm air. Low pressure would be "moister" than high pressure--meaning it would carry a higher percentage of water vapor or have a higher relative humidity.
What factor most affects the amount of water air can hold-?
Water vapor in the air compared to the amount of water vapor that air could hold at a given temperature.
What happens to airs ability to hold water vapor as the air gets warmer?
As the air gets warmer, it's ability to hold water vapor increases.
