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Wiki User
∙ 6y agoI assume you mean proportion, not concentration - but it reflects the nature of the atmosphere, which is mainly nitrogen. At the other end of the scale, pure oxygen becomes toxic under pressure but I believe is used with great care as a decompression aid.
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Nitrogen is 78% of air, so simply compressing air means that the partial pressure of nitrogen will be higher than the partial pressure of oxygen. This has importance in deep diving, as nitrogen also dissolves in the blood and can form dangerous bubbles if you decompress too rapidly.
Wiki User
∙ 13y agoThe same reason every other gas in a scuba cylinder is compressed. If a cylinder is pressurized, then the gas in it is compressed by definition. If it is not pressurized, then there is obviously no gas in the cylinder to breath.
Wiki User
∙ 7y agoAt the temperatures and pressure found on Earth, oxygen is a gas. As with all gasses, there is plenty of space between the molecules of oxygen gas, meaning there is room to compress it.
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What is the air mixture in scuba?
Same as the air you breath everyday, aprox 21% Oxygen 79% Nitrogen
Scuba tanks have wh at noble gas in them?
Some advanced divers dive using gas mixtures including Helium.
Is the oxygen and helium in a scuba tank a pure substance?
No it is not,. They use a membrane system to produce and mix the air before that they used to partial fill and and roll the tanks on the floor to get them to blend.
How do scuba divers sink if they have tanks of compressed air on their backs?
The average aluminum SCUBA cylinder holds 80 cubic feet of air at pressure. That means you are taking the equivalent of a closet's worth of air and smashing it into a cylinder much smaller than that. When full, the cylinder is at 3,000 pounds per square inch of pressure.When the valve is opened, it sends air into the (assumed) first stage regulator which is connected by hoses to gear such as two second stage regulators, instruments and your vest.So the SCUBA tanks don't so much USE the air so much as STORE the air at high pressures.
What are helpful uses of nitrogen?
It is used to purge moisture from optics. It is used in hydraulic accumlators and in recoil mechanisms of tanks and artillery.
What are scuba tanks made of?
Most scuba tanks are filled with simple purified air. However, some are filled with oxygen enriched air called 'nitrox' or (less commonly) a blend of helium, oxygen and nitrogen called 'trimix' or (even less commonly) helitrox or heliox.
Are scuba tanks hydraulic or pneumatic?
SCUBA tanks are metal (usually steel or aluminum) that are filled with compressed air. This is loosely related to a pneumatic system.
What is an example sentence for the word tanks?
Hide behind those water tanks. The scuba tanks are filled and ready to go.
Where can you get scuba tanks refilled other than at scuba shops?
You could buy your own portable diving compressor, my dive buddy has one, there not silly expensive . You must get fills from a compressor designed for diving (breathing) as the air is filtered and moisture removed.
Is there a certain temperature to keep tanks for scuba diving?
Under 25
Do tanks that fill CO2 also fill nitrogen tanks?
No, they cannot.
Is the oxygen and nitrogen in a scuba tank considered a heterogeneous?
I would think so, because there are two of them mixed together. Air in a scuba tank or anywhere else should be heterogeneous. A scuba tank filled with either oxygen or nitrogen would be homogeneous.
Do ions need nitrogen tanks?
Yes, they require High pressure air (nitrogen) tanks. They cannot run off of CO2.
Fluid technologies that make use of air?
Fluid logic.
What is in the air tanks that will give you the bends?
Nitrogen.
What is the reason for putting tanks in water along with the scuba diver?
so the diver can breath.
If there is no oxygen on the moon then how does the man in the moon breathe?
By oxygen tanks - similar to SCUBA divers.
