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No. The atmosphere is roughly 80% N2, 20% O2, and about 1% of other trace gases. The molecular mass of N2 is about 28, the molecular mass of O2 is about 32. So, no O2 is not lighter than air, it is slightly heavier.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoYou seem to have your thinking backwards. Nitrogen is "lighter" than air. And by lighter, I mean less dense. Air is essentially 79% nitrogen and 21% (There is technically Argon, carbon dioxide and several other gases in air, but their so minute compared to oxygen and nitrogen they're usually ignored). Pure nitrogen is less dense than pure oxygen due to the molecular weight of oxygen being more than the molecular weight of nitrogen. So when oxygen is mixed with nitrogen, the mixture, air, will be more dense than pure nitrogen.
Wiki User
∙ 14y agoAir is mainly composed of nitrogen. Because nitrogen is lighter than oxygen, air is lighter than pure oxygen.
Wiki User
∙ 13y agoYes it is.
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Is bromine gas heavier than air?
The bromine vapors are heavier than air.
Why does the stratosphere have less oxygen than the troposphere?
We know that oxygen is just a bit heavier than the air like carbon dioxide ,nitrogen etc.Besides that the main source of oxygen,the trees is in troposphere. Because of this reasons oxygen density is much heavier in troposphere than the stratosphere
Which is heavier hydrogen or nitrogen?
Nitrogen, has a atomic weight roughly 14 times heavier then that of hydrogen.
What is heavier damp air or dry air?
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 happens when water vapor is lighter than nitrogen or oxygen?
Water vapor is a gas so it is in the air. Nitrogen and nitrogen are in the air too, but there is more nitrogen than anything in the air. I believe it rises because it is lighter, like a balloon filled with helium.
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.
Is nitrogen dioxide a metal?
nitrogen dioxide is nonmetal. it is a gas which has some what heavier than air
Out of dry and wet air which is heavier?
Moist air weighs less than dry air at the same temperature. This is because the density of diatomic Oxygen and Nitrogen is greater than water vapor (H2O).
Is nitrogen heavier than oxygen?
it is heavier
Is nitrogen denser than air?
No, air is more dense because it contains 20% oxygen, the heavier element than nitrogen (32 g/mol O2, i.s.o. 28 g/mol N2).
Why atmospheric nitrogen is heavier than chemical nitrogen?
Because in air is some more N-15 isotope than in soil, rock, water. Caused by influence of cosmic radiation.
Is air heavy or light?
Generally, dry air is heavier than humid air because the water vapor is lighter than the nitrogen and oxygen that make up 99% of the atmosphere. Also, cold air is heavier than warm air. which is the basis for most of our weather. The reason cold air is heavier is due to the molecules being packed closer together.
Why is argon more dense than nitrogen?
atoms of argon are heavier than atoms of nitrogen
Is ammonia vapor heavier than nitrogen?
Nitrogen gas has a higher density.
Are solvents heavier than air?
Yes solvents are heavier than air
Is breath heavier than air?
No, water is heavier than air.
Is argon heavier then air?
Yes, it is heavier than air.
