1. Not finding help here? Sign up for a free 30min 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!

Ideal gas question. Please Urgent help needed

  1. Apr 25, 2007 #1
    The relative humidity is 55% on a day when the temperature is 30.0°C. Using the graph below, determine the number of moles of water vapor per cubic meter of air.


    on the graph, Vapor pressure of water is on the y-axis and temperature on the x-axis 30C cordinates with 4200 Pa of water vapor.


    This how i tried to sove it.

    Since 30 corresponds to 4200 Pa

    T in Kelvin =303
    n/v = p/RT
    =4200/(8.32 x 303)
    = 1.67
     
  2. jcsd
  3. Feb 12, 2009 #2
    I need help with this same problem...

    http://www.webassign.net/CJ/12_76.gif

    That is the graph, if anyone can help.

    EDIT... I really don't know where to start at all. I tried to do it (almost) the same way as owura, but I couldn't figure it out how to find it in "mol/m^3".
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Ideal gas question. Please Urgent help needed
Loading...