1 ATM is actually equal to mean sea level itself. Now if you filled a balloon with air and put it under the water, you would notice that the volume will decrease. This decrement will increase as you go further down. Since the volume is decreasing, pressure must be building up inside (PV=nRT), assuming that the temperature doesn't change. Thus undersea pressure will be higher than 1 ATM.
Addition
For water pressure alone, 10 meters of water is equivalent to 1 atmosphere of air pressure.
The pressure at 500 meters below sea level is approximately 5 atm (atmospheres), which is equivalent to about 73 psi (pounds per square inch). This pressure increases by approximately 1 atm for every 10 meters of depth.
Around 10 meters.
add 1 atm (atmosphere) for every 10 meters below the surface
To experience a pressure of 2 ATM, you would need to dive to a depth of 20 meters (2 ATM = 1 ATM (surface) + 1 ATM (pressure at 10 meters depth)). At a depth of 100 meters, the pressure would be approximately 11 ATM (1 ATM at surface + 1 ATM for every 10 meters).
Yes, 2 ATM is equivalent to the water pressure at a depth of approximately 20 meters underwater. This is because each additional 10 meters of depth adds around 1 ATM of pressure.
The pressure at different altitudes depends on the weight of the air column above that point. At 14000 ft above sea level, there is less air above causing lower pressure (0.69 ATM). Conversely, at 14000 ft below sea level, there is more air above causing higher pressure (470 ATM).
Atmosphere is a measure of pressure, not of length like the meter.
At 4 meters below the sea level, the pressure exerted by the water column above the diver would be approximately 0.4 atmospheres higher than atmospheric pressure at the surface. Therefore, the expected pressure of air in the diver's lungs would be the sum of this increase and atmospheric pressure.
795.0
I'm level 110 atm.
HI sir 10 ATM is 100M so it's the same thing..
One atmosphere of pressure is equal to the pressure at sea level. Therefore, 100 atmospheres would be roughly equivalent to the pressure experienced at a depth of about 3,000 feet (914 meters) underwater.