When air is holding all the moisture it can hold, it is said to be saturated.
warmer
Relative humidity is the ratio of the amount of water air is holding to the amount of water it can hold. The warmer air is, the more water it can hold. Therefore, as air temperature drops, relative humidity increases, even when no additional moisture is being added to the air. If the temperature continues to drop after the relative humidity reaches 100%, the excess moisture gets condensed out of the air. That is why dew forms during the night. The cold cup of water cools the air around it by conduction, so that cooler layer of air in contact with the cup loses its ability to hold its moisture, and the excess moisture condenses onto the cup.
It decreases. As air cools, mist, then clouds, then rain / snow forms... as the moisture is displaced.
Warmer temperatures hold more water.
The simple answer is no. What an air conditioner does, is cool air (obviously). When air is cooled however, it loses its ability to hold moisture. Therefore, the relative humidity (Water vapor/Capacity) of the air in the room will increase despite the fact that no moisture was added.
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Air holds moisture. The warmer the air, the more moisture it can hold. So when warm air holding a fair amount of moisture comes in contact with the very cold dry ice, it cools down, and some of the moisture condenses out into those clouds you're seeing because the colder air is no longer capable of holding it.
The warmer the air, the more moisture it can hold. This is an exponential relationship.
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%.
Air is supersaturated when it has absorbed all the moisture possible at that temperature. By the way, hot air can hold more moisture than cold air, which is why it is called relative humidity.
The air is holding half the moisture that it has the capacity to hold. You can say nothing quantitative though with only this information.
Moisture in the air is called humidity. There are different measurements of humidity including absolute humidity.
If air is holding as much moisture as it can, colder air holds less than warmer.
the less moisture it can hold
Warm Air
Relative humidity is a measure of how much moisture is in the air relative to how much the air can hold. All the matters in the case of the latter is the air temperature. So if you cool the air temperature, the air can hold less moisture. Therefore, the air now has a larger percentage of moisture relative to what it can hold.