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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 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.
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.
Why does dew produced when ice is in a glass?
Because the surface temperature of the glass gets colder than the dewpoint temperature of the air. Therefore the relative humidity goes over 100% on the glass causing water vapor in the air to condense into liquid water on the glass.
What is the amount of water in the air compared to the amount of air can hold called?
"relative humidity"
What do you call the comparison of the actual amount of water vapor in the air to the amount of water vapor in the air if it were saturated?
The comparison of the actual amount of water vapor in the air to the amount of water vapor in the air if it were saturated is called relative humidity. It is expressed as a percentage and indicates how close the air is to being saturated with moisture.
The amount of water vapor actually in the air is called the?
The amount of water vapor in the air is called the absolute humidity. It is usually expressed as grams of water vapor per cubic meter of air.
Is the amount of water in the air called condensation true or false?
False. this is called humidity. Condensation is when water vapor condenses into liquid water.
What is a measure of the amount of water in the atmosphere?
The measure of the amount of water vapor in the atmosphere is called humidity. It is typically expressed as relative humidity, which is the ratio of the amount of water vapor present in the air to the maximum amount of water vapor the air can hold at a specific temperature.
the amount of water in the air compared to the amount the air can hold is called?
relative humidity
Which condition is the actual amount of water vapor in a mixture of air and water?
The actual amount of water vapor in a mixture of air and water is called absolute humidity. It represents the mass of water vapor divided by the total mass of the mixture, including both the water vapor and dry air.
A measure of the amount of water vapor in the air is?
Relative humidity is a measure of the amount of water vapor in the air. It represents the ratio of the amount of water vapor present in the air to the maximum amount of water vapor the air can hold at a specific temperature, expressed as a percentage.
What is the total amount of water vapor leaving the earth's surface called?
The total amount of water vapor leaving the Earth's surface is called evaporation. Evaporation is the process by which water at the surface turns into water vapor in the air.
What is the amount of water in the air compared to the amount of air can hold is called?
The amount of water vapor in the air compared to the maximum amount it can hold at a specific temperature is called relative humidity.
What is the amount of water vapour present in air called?
The amount of water vapor present in air is called humidity. Humidity is a measure of the water vapor content in the air, expressed as a percentage relative to the maximum amount of moisture that the air can hold at a specific temperature.
What tells the amount of water vapor in the air?
The amount of water vapor in the air is typically measured using a parameter called relative humidity. This value indicates the percentage of water vapor present in the air relative to the maximum amount of water vapor the air can hold at a given temperature. Another common measurement is the dew point, which is the temperature at which air becomes saturated and water vapor begins to condense.
What is the relationship between water vapor and humidity?
Water vapor is water is gas form. Humdity is the amount of water the air can hold. So, they're both water in the air.
