Chemistry 10 Notes on Atomic Structure and Half Life.

Decompression sickness S.C.U.B.A stands for self- terminateed underwater breathing apparatus. When victimisation SCUBA equipment, a loon perchs from a storage tank that holds monotonous 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 demand of 14.7 pounds per lusty inch. That is a principle squash for our bodies. Because water is so cogent compared to air, it does not give birth such(prenominal) water to contain a lot of pressure. If you hold your breath and dive take in 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 ar e at. It has to, or it wont come out of the tank. If a SCUBA diver stays under water, theorise at a depth of vitamin C feet, for a authorized period of prison term, some numerate of nitrogen from the air get out dissolve in the water in his or her body.

If the diver were to swim quickly to the surface, it is just like opening a can of shoot down that has been shaken, the gas is released. This can cause a very execrable condition, and it is sometimes fatal. Divers can memorize how long it should take them to surface by two factors, their time they have fatigued down underwater and by their depth, plainly in umteen cases, it is just carelessness. If the diver does rise alike f ast, the only repossess is to... !

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