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: Pressure in a piston-cylinder

  1. Sep 18, 2010 #1
    Warm air is contained in a piston-cylinder assembly cools slowly from volume of 0.003 m^3 to 0.002 m^3. During the process a spring exerts a force that varies linearly from an initial value of 900 N to final value of 0. Patm = 100 kPa and the area of the piston face is 0.018 m^2.

    Or,

    V1 = 0.003 m^3
    V2 = 0.002 m^3

    F1 = 900 N
    F2 = 0

    Patm = 100 kPa


    Image.jpg

    I'm not exactly sure where to start here. Can someone help me figure out what formula to use?
     
    Last edited: Sep 18, 2010
  2. jcsd
  3. Sep 19, 2010 #2

    Delphi51

    User Avatar
    Homework Helper

    PV = nRT applies to the air in the piston.
    F = kx applies to the spring.
    What is the question?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook