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What is the pressure in atmospheres on the body of a diver if he is 21 ft below the surface when the atmospheric pressure at the surface is 0.94 atm?
Wiki User
∙ 12y ago
The pressure of freshwater increases by 1 atm for each 34 ft of depth. The pressure of seawater increases by 1 atm for each 33 ft of depth. If surface pressure is 0.97 atm, simply add that pressure to the pressure of the water.
For seawater, you are exactly 1 atm below the surface... So:
1 atm + 0.97 atm = 1.97 atm
For freshwater, divide 33 by 34 to get the fraction of an atmosphere you're adding to your surface pressure:
33/34 * 1 = 0.97 atm
Then add that number to the surface pressure:
0.97 + 0.97 = 0.94 atm
Wiki User
∙ 12y ago
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