1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
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

  1. Oct 6, 2009 #1
    what is the partial pressure of oxygen gas. if it is collected over water at 25 degrees celcius and an atmospheric pressure of 99.3 KPa. answer in mmHg

    okay i know the formula for partial pressures is

    P total = P O2 + P H2O

    but there is no other info given like the volume or anything so i am lost. please answer by tomorrow. and show all the steps. i have a quiz the day after
  2. jcsd
  3. Oct 6, 2009 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    There should be a discussion of how H20 pressure varies with temperature, either in your textbook or class lecture notes. You might try looking up "vapor pressure" or "pressure, vapor" in the index of your textbook.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Partial pressures
  1. Partial Pressures (Replies: 2)

  2. Partial Pressure (Replies: 2)

  3. Partial Pressures (Replies: 16)