Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Partial Pressures Question

  1. Jul 19, 2010 #1
    Tell me if this line of reasoning is correct:

    The partial pressure (PP) of oxygen in water which is saturated with air is the same as the partial pressure of the oxygen in the air around the water. Now, if I have a channel where cells are consuming oxygen, the PP is going to be going down over the length of the channel. Now, lets say I am measuring the partial pressure of the oxygen along the bottom of the channel (where the cells are) and I normalize these values against the inlet (saturated PP concentration) -- now lets say I have a model which gives me oxygen concentrations in terms of absolute concentrations along the bottom of the same channel (i.e. in mol/m^3) - I then normalize these concentrations against the inlet concentration.

    Shouldn't these too normalized graphs be the same (assuming nothing else happens [other changes in temperature and pressure] - and both cases are describing the same system under the same conditions)?
  2. jcsd
  3. Jul 19, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Sounds reasonable to me.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook