Is air in a scuba tank a liquid and a gas?

Answer 1

The air inside Scuba tanks is, usually, just regular air that has been compressed and "jammed" into a tank. Some diving applications utilize gas mixtures of oxygen, nitrogen (and sometimes hydrogen).

Answer 2

Normal divers use compressed air in their tanks. On special deep dives to extreme depths, there are other combinations of gases that are used, always including oxygen, as it is required by the human body to survive.

Addition

In general it is normal air for recreational scuba diving. But oxygen can be added so it is now common to have oxygen enriched air (or nitrox). Oxygen itself is not the benefit in nitrox. The benefit comes from diluting the amount of nitrogen (due to the addition of oxygen) that is being breathed since nitrogen is the gas that causes decompression sickness.

Answer 3

Air is a gas in diving cylinders.

All gasses will turn into a liquid if they are under enough pressure or if you make it cold enough. Butane in gas bottles tuns to a liquid at low pressures, so 'gas' in those bottles is a liquid. This makes them run a long time. In cold weather is is often impossible to get gas out of them because it wants to stay as a liquid.

Air in diving cylinders is generally less than 300 bar which although a high pressure is a much lower pressure than would be required to turn air into a liquid. You would also have to make it awfully cold to make it into a liquid. Even if it were possible to make it cold enough or put it under high enough pressure, to store the air as a liquid, it would cause problems for the diver. Not only would the cylinder be immensely heavy but the air changing state from a liquid to a gas and dropping to a breathable pressure would make it very cold in indeed.

Answer 4

no oxygen is... heres my question, how did you come up with that question!?!?!?!?

Answer 5

It is Gas didn't you take a class on this