Physics0

The currently accepted maximum depth limit for safe scuba diving while breathing air is 50 metres. What is the absolute partial pressure of oxygen at this depth?

my solution was as the following, please correct me if I'm wrong:

P=F/A
Thus the pressure exerted by the liquid (water) so that P=weight/area = mg/A = HApg/A =Hpg
where g=9.8ms and p=1030kg

so to workout the presser of oxygen at 50m depth, as the inspired oxygen presser is 0.21*(100-6.3)=19.6KP, which means that 50m *19.6= 980

then P=Hpg = 25750/980=30KPa to 1sf

  1. 👍 0
  2. 👎 0
  3. 👁 129
  1. pressure of water at 50 m;

    hpg=50*1030*9.8== 504700 pa
    or 504kpa
    Now on the water, is atmospheric pressure, so adding that, 605kpa

    pressure of O2:
    .21*605kpa=127kpa

    I can't follow your thinking.

    1. 👍 0
    2. 👎 0
    👨‍🏫
    bobpursley

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics, Math

    A typical volume of a modern hot air balloon is 2500 cubic metres, and a typical maximum temperature of the hot air is 120 degrees Celsius. Given these figures, and an outside air temperature and density of 15 ∘C and 1.225 kg/m3

  2. Chemistry

    A snorkeler takes a syringe filled with 16 mL of air from the surface, where the pressure is 1.0 ATM, to an unknown depth. The volume of the air in the syringe at this depth is 7.5 mL. What Is the pressure at this depth? If the

  3. Physics

    The hydrostatic equation holds not just for air, but for other fluids such as water (air, though it is a gas, is often referred to as a 'fluid') as well. In the case of water the equation becomes even easier, as water (as opposed

  4. science

    The hydrostatic equation holds not just for air, but for other fluids such as water (air, though it is a gas, is often referred to as a 'fluid') as well. In the case of water the equation becomes even easier, as water (as opposed

  1. chemistry

    Mixtures of helium and oxygen are used in scuba diving tanks to help prevent ‘the bends’, a condition caused by nitrogen bubbles forming in the bloodstream. If 95 L of oxygen and 25 L of helium at STP are pumped into a scuba

  2. Maths

    May someone help me with this HW problem? The depth (D metres) of water in a harbour at a time (t hours) after midnight on a particular day can be modelled by the function D = 2 sin(0.51t - 0.4) +5, t

  3. physics , math

    The hydrostatic equation holds not just for air, but for other fluids such as water (air, though it is a gas, is often referred to as a 'fluid') as well. In the case of water the equation becomes even easier, as water (as opposed

  4. math

    Hailey is scuba diving in the ocean. Her boat is anchored 300 feet away at a 30° angle of depression. If her diving partner is 25 feet directly below her, how far is Hailey's diving partner from the boat? (round to nearest whole

  1. aeronautics

    A typical volume of a modern hot air balloon is 2500 cubic metres, and a typical maximum temperature of the hot air is 120 degrees Celsius. Given these figures, and an outside air temperature and density of 15 ∘C and 1.225 kg/m3

  2. Pre Algebra

    A scuba diver uses negative numbers to represent her depths below sea level. She was at a depth of -1.5 meters. Then she dove down to a depth of -4.2 meters. What is the difference between those depths? Write your expression, show

  3. physic

    you are designing a diving bell to withstand the pressure of sea water at a depth of 250m. a)what is the quage pressure at the depth(you can ignor the small changes in the density of the water with depth.) b)at the 250m depth,

  4. PE

    How does breathing change during exercise? Rate and depth decrease Rate and depth increase Rate increases and depth decreases Rate decreases and depth increases I think Rate increases and depth decreases is correct, can someone

You can view more similar questions or ask a new question.