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Dry air is "heavier" than moist air, that is, it is denser. The water molecules in humid air do not fit in between "air" molecules (diatomic nitrogen and oxygen in a 79:21 ratio), they replace them, as per Avogardo's number of molecules in a mole of a gas. One molecule of diatomic nitrogen has a mass of 32 AMU and of diatomic oxygen, 28 AMU. A water molecule only has a mass of 16 AMU. Don't believe it? Think about it: a high pressure system is dry air and is higher pressure because it is a sinking air mass. It sinks because it is heavier.
What else can I help you with?
What is sinking air dry weather and few clouds?
Sinking air usually creates stable atmospheric conditions, leading to dry weather with a few clouds. As the air descends towards the surface, it warms and suppresses cloud formation and precipitation. This can result in clear skies and dry conditions.
What brings dry clear weather?
Clear weather is caused by dry winds and high pressures. Low pressures are an indication of rising air, which carries moisture aloft and causes rain. Damp maritime air, that which comes from over warn oceans, brings moisture onshore and causes rain.
Why do wet clothes dry faster on a hot day than on a cold day?
Wet clothes dry faster on a hot day because the heat in the air increases the rate of evaporation of the water from the clothes. In contrast, on a cold day, the lower temperature reduces the rate of evaporation, resulting in slower drying times.
Is a high pressure center characterized as cool dry air or warm dry air?
A high pressure center is characterized by cool dry air, as it is associated with descending air that warms and dries as it sinks towards the surface.
If cold air is heavier than warm air then why is it colder in the mountains?
You have forgotten one vital fact, cold air is heavier than hot air------At the same atmospheric pressure!!. That means that the cold air on Mt Everest is lighter than than the warm air 29000 ft below in the Ganges Delta.
Is humid air heavier than dry air?
Yes, humid air is heavier than dry air because water vapor molecules in humid air add to its overall weight.
Out of dry and wet air which is heavier?
Dry air is heavier than wet air because water vapor is less dense than the other components of dry air, such as nitrogen and oxygen. When moisture is added to the air, it displaces some of the heavier components, making wet air less dense and therefore lighter.
Who is heaver nitrogen or air?
Dry air is about 80% nitrogen. The remaining 20% consists mostly of things that are heavier than nitrogen, so dry air is very slightly heavier than nitrogen.
Does a nail rust faster when the air is damp or dry?
A nail will rust faster in damp air because moisture accelerates the corrosion process by providing the water and oxygen needed for rusting to occur. Dry air slows down the rusting process by limiting the availability of water and oxygen.
Is moist air heavier or lighter than dry air?
Moist air is heavier than dry air, because of the water.
Why does washing on a line take longer to dry on a damp day?
On a damp day, the humidity in the air is higher, which means there is more moisture in the air already. This moisture makes it harder for water to evaporate quickly from the clothes on the line, so they will take longer to dry compared to a dry day with lower humidity.
Can dry ice float a hot air balloon?
No. Dry ice is frozen carbon dioxide, which is heavier than air, so wont float a balloon.
Why is dry air heavier than wet air?
The 'wetness' in the air creates a more dense 'air particle' which creates humid areas and such.
Does a millipede like a dry or damp habitat?
damp
Air pressure is highest when the air is?
Cool and dry. I do not completely agree with the answer above. When air has more moisture in it, it is heavier. When it is colder it is denser and heavier. Air planes have more "lift" in higher humidity and hot air is what makes balloons rise. In weather it appears that air is dry when the pressure is high...more rain when the pressure is low. That is a factor of weather patterns, not properties of air.
How can I fix cracked air dry clay?
To fix cracked air dry clay, you can try moistening the cracked area with water and gently smoothing it out with your fingers or a damp sponge. Allow the clay to dry completely before painting or decorating it.
What is Opposite to damp?
dry, arid
