PPT Slide
Why is the pressure 4.54 atm?
At 120 ft of water you feel the pressure from 760
mm of atm (equal to 33.9 ft of water) plus 1440
inches of water. This gives a total pressure of
1847 inches of water (= 154 ft) or
154 ft * 1 atm/33.9 ft = 4.54 atm = 3450 mm Hg
= 8.42 x 10-7 M/mm Hg (3450 * 0.8)
= 2.32 x 10-3 M (28 g/mol)(1000mg/g)
What happens if you immediately surface?