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the ______ in the air you are breathing limits the time you can stay at depth
- ✔✔nitrogen
in the early twentieth century, a quantitative model for nitrogen loading and
dive tables were developed by - ✔✔John Scott Haldane
we say that nitrogen is an inert gas. this means - ✔✔our bodies do not use
the nitrogen we breathe
credit for developing and introducing nitrox diving techniques for standard
scuba goes to - ✔✔Dr. Morgan Wells
NAUI sanctioned enriched air nitrox training in - ✔✔1992
two benefits of diving with nitrox are - ✔✔longer dive times and shorter
surface intervals
what does the "x" stand for in the term EANx? - ✔✔the percentage of
oxygen in the mix
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, in 1878, Paul Bert established that_____, liberated as bubbles following
sudden decompression was the cause of decompression sickeness -
✔✔nitrogen
nitrox is a _____ breathing gas - ✔✔mid-range
nitrox provides the greatest advantages for dives in the _____ depth range
- ✔✔15-33 m (50-110 ft)
as a gas is heated in a rigid closed container its pressure will - ✔✔increase
"if one quantity of gas will dissolve at one atmosphere of pressure, then
three quantities of gas will dissolve at three atmospheres." this statement
refers to which law? - ✔✔Henry's Law
atmospheric pressure can be measured in many ways. what is one
atmosphere in millimeters of mercury? - ✔✔760 mmHg
the ____ of a specific gas in a mix is the portion of the total pressure
exerted by that gas - ✔✔partial pressure
what is the absolute pressure at 17 msw (56 fsw)? - ✔✔2.7 ata
what is the oxygen partial pressure in EAN35 at a depth of 26 msw (85
fsw)? - ✔✔1.3 ata
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