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MaxineNitrogen is added to Scuba tanks as part of the breathing gas mixture to dilute the higher oxygen content. This helps reduce the risk of oxygen toxicity at deeper depths while still providing enough oxygen for the diver. Oxygen toxicity can be dangerous for divers, so nitrogen is used to make the gas mixture safer for breathing.
I 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.
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Scuba tanks have wh at noble gas in them?
Scuba tanks are typically filled with compressed air, which is a mixture of oxygen and nitrogen. However, some scuba tanks may also contain a noble gas such as helium as part of a special gas mix called trimix, which is used for deep dives to reduce the risk of nitrogen narcosis.
What is the air mixture in scuba?
The air mixture in scuba diving tanks is typically compressed air, which consists of about 21% oxygen and 79% nitrogen. This mixture allows divers to breathe at depth without experiencing adverse effects of high pressure.
How do scuba divers sink if they have tanks of compressed air on their backs?
Scuba divers use weights to sink during a dive because the air tanks on their backs make them buoyant. By adjusting the amount of weight, divers can achieve neutral buoyancy underwater. This allows them to control their depth and movement throughout the dive.
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.
Is the oxygen and helium in a scuba tank a pure substance?
Yes, the oxygen and helium in a scuba tank are pure substances because they consist of only one type of molecule and cannot be separated by physical means.
