How is scuba gear related to the gas laws?

AI Thread Summary
Scuba gear operates fundamentally on gas laws, particularly the relationship between pressure and volume. When air is compressed, such as in a cylinder from 15 psi to 3000 psi, it demonstrates how gas laws govern the behavior of air under pressure. Underwater, the regulator adjusts the air pressure to match the surrounding water pressure, allowing for effortless breathing. The volume of air consumed during each breath varies with depth, as deeper water increases pressure. Understanding these principles is crucial for safe and effective scuba diving.
muhammad269
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I really don't know much about it so please go in depth
 
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Well it pretty much relies on the gas laws to work - what do you want to know?
 
mgb_phys said:
Well it pretty much relies on the gas laws to work - what do you want to know?
how does it rely on the gas law please explain
 
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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