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Dry air is more dense than moist air because water vapor is lighter than the two main gases found in air, nitrogen and oxygen. The pressure of a gas depends on both its temperature and density, therefore, dry air would create more pressure than moist air, at a constant temperature.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe moist air pressure depends on temperature higher than it does when it is dry, even, at temperatures far from saturation point. That is explained by the fact, that the universal gas constant of the moist air is more, than the dry air has with the same other conditions.
The more high depense the moist air pressure on temperature, at the point of its saturation is due to condensing/evaporating of steam/water part in a mixture.
Wiki User
∙ 13y agoHumid air is lighter, therefore it has less air pressure
Wiki User
∙ 9y agoThe atmospheric pressure is constantly changing depending on the air conditions. If the air is moist, as in it is about to storm, the pressure is usually higher.
Wiki User
∙ 8y agoNo. Dry air is actually denser than moist air of the same temperature. This is because water vapor is less dense than air.
Wiki User
∙ 12y agoit has low pressure because water vapor weighs less than regular air.
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Why does warm air meeting moist air result in low pressure?
The warm air is moist due to water evaporating from the land/ocean. It is low pressure because warm air is less dense, and rises, creating an area of low pressure.
Why is moist air associated with low air pressure?
Warm, moist, humid, air associated with a low pressure system is actually lighter than dry air - owing to the fact that hydrogen molecules in water vapor (H20) are lighter than Oxygen or Nitrogen molecules. This moist air rises - causing air pressure to be relatively low compared to surrounding air.
What weather do warm moist air masses bring?
low pressure
What happens to the relative humidity of moist air as the air travels over the cascade range?
Decreases
What happens to the air pressure when you move from the troposphere to the stratosphere?
air pressure decreases
What happens when air pressure changes?
space cold air has greater air pressure height above earth and moist are that has less air pressure
Which air pressure system is generally associated with warm moist air?
Choices; low pressure, changing pressure, high pressure, no pressure.
Why does warm air meeting moist air result in low pressure?
The warm air is moist due to water evaporating from the land/ocean. It is low pressure because warm air is less dense, and rises, creating an area of low pressure.
Why is moist air associated with low air pressure?
Warm, moist, humid, air associated with a low pressure system is actually lighter than dry air - owing to the fact that hydrogen molecules in water vapor (H20) are lighter than Oxygen or Nitrogen molecules. This moist air rises - causing air pressure to be relatively low compared to surrounding air.
What happens when gold is kept in moist air for long?
Nothing
What happens when moist air pushes a mountain?
Orographic effect
What weather do warm moist air masses bring?
low pressure
What usually means rainy weather because moist air is rising?
Decreaseing air pressure
What is a high-pressure system what is its effect?
A high pressure system is when the air is moist. The effect is dry and cool.
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.
Does air pressure affect water pressure?
Water 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.
What happens to air pressure when the barometer is rising?
The air pressure is rising.
