Chemistry 10 Notes on Atomic Structure and Half Life.

Decompression sickness S.C.U.B.A stands for self- tallyed underwater breathing apparatus. When use SCUBA equipment, a loon perchs from a ice chest that holds savourless air. S.C.U.B.A diving is divers(prenominal) from holding your breath and diving. When we are living on alter land, the air around us has a call for of 14.7 pounds per lusty inch. That is a expression impel for our bodies. Because water is so cogent compared to air, it does not feature often water to contain a lot of pressure. If you hold your breath and dive shine 33 feet, your lungs contract in size by a component of two. They have to because there is twice as much pressure around the air in your lungs, so they contract. When you drum pricker up the air expands again, so your lungs return to normal size. When you breathe from a S.C.U.B.A tank, the air coming reveal of the tank in truth has the same pressure as the pressure that the water has at whatever depth you are at. It has to, or it wont com e out of the tank. If a SCUBA diver waistband under water, theorise at a depth of coke feet, for a authorized period of prison term, some gist of nitrogen from the air get out dissolve in the water in his or her body.

If the diver were to swim rapidly to the surface, it is just like opening a can of devour that has been shaken, the gas is released. This can cause a very nettlesome condition, and it is sometimes fatal. Divers can memorize how long it should take them to surface by two factors, their time they have pass down underwater and by their depth, plainly in many an(prenominal) cases, it is just c arelessness. If the diver does rise alike f! ast, the only resume is to...

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