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!

Determine the pressure of a gas in a manometer?

  1. Jan 14, 2005 #1
    How does one use various liquids and their unique densities to determine the pressure of a gas in a manometer?
     
  2. jcsd
  3. Jan 14, 2005 #2

    russ_watters

    User Avatar

    Staff: Mentor

    Pretty simple: [weight] density times height.
     
  4. Jan 15, 2005 #3
    Thank you.
     
  5. Jan 21, 2005 #4
    manometer

    on traditional manometer, i.e U-shaped tube, the height difference between the left and the right column is the "h"

    To calculate the "manometric" pressure use this formula
    Pressure = density of the liquid * gravity constant * the height difference "h"

    To obtain the absolute pressure simply add this manometric pressure to the atmospheric pressure (i.e. on standard condition : 1 atm, 760 mmHg, 101.3 kPa)

    Hope it helps
     
  6. Jan 21, 2005 #5
    Yes it does greatly. Thanks! :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Determine the pressure of a gas in a manometer?
Loading...