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!

Homework Help: Chemistry question

  1. Sep 13, 2009 #1
    1. The problem statement, all variables and given/known data
    A diving bell has an air space of 3.0 m2 when on the deck of a boat. What is the volume of the air space when the bell has been lowered to a depth of 50 m? Take the mean density of sea water to be 1.025 g cm-3 and assume that the temperature is the same as on the surface.

    2. Relevant equations

    PV = nRT

    3. The attempt at a solution

    I'm thinking I should use the ideal gas law to solve this problem.

    V1P1 = nRT

    V2P2 = nRT

    V1P1 = V2P2

    P1 = 1 atm (at surface of water)

    P2 = ? (would I use the density of sea water and surface area of diving bell somehow?)

  2. jcsd
  3. Sep 13, 2009 #2
    [tex]P_{2}=P_{1}+\rho g \Delta z[/tex]
    g=gravitational acceleration
    [tex]\Delta z[/tex]= difference in depth
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook