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!

Chemistry pressure of gas problem

  1. Jan 13, 2013 #1
    1. A vessel that contains a gas has two pressure gauges attached to it. One contains liquid mercury, and the other an oi lsuch as dibutyl phthalate. The difference in levels of mercury in the two arms of the mercury gauge is observed to be 9.50 cm.Given

    density of mercury =13.60 g cm-3
    density of oil = 1.045 g cm -3
    acceleration due to gravity = 9.806 m s-2

    (a) What is the pressure of the gas?
    (b) What is the difference in height of the oil in the two arms of the oil pressure gauge?

    2. Pressure = density * g * h

    3. for part a, do i find the pressure of the gas by using P=pgh and just plugging in the density of mercury, the height difference, and the gravitational constant?

    and can i just use that answer to find the difference in height of the oil by using P=pgh with P=the pressure from a, g, and p=the density of oil?
  2. jcsd
  3. Jan 13, 2013 #2


    User Avatar

    Staff: Mentor

    If I understand the problem correctly - yes.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook