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How is scuba gear related to the gas laws?

  1. Mar 12, 2009 #1
    I really dont know much about it so please go in depth
     
  2. jcsd
  3. Mar 12, 2009 #2

    mgb_phys

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    Well it pretty much relies on the gas laws to work - what do you want to know?
     
  4. Mar 12, 2009 #3
    how does it rely on the gas law please explain
     
  5. Mar 12, 2009 #4

    mgb_phys

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    Probably the important fact is that pressure * volume is a constant.
    So you take 80 cu ft of air at atmospheric pressure (15psi) and squeeze it down into a small cylinder at 3000psi
    Then underwater the regulator (the bit in your mouth) delivers air at the same pressure as the water so you can breath with no effort.
    With each breath you take about the same volume (1litre) but at a pressure that depends on the depth so the amount of air you use depends on the depth
     
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