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: Adiabatic Compressibility

  1. May 17, 2010 #1
    I have been asked to show that if an ideal gas is compressed isothermally its compressibility is 1/P whereas if the same gas is compressed adiabatically its compressibility is 1/yP

    Where y is gamma


    I have managed to do the first bit about isothermal compressibility, but cannot work out how to do the next bit.
     
  2. jcsd
  3. May 18, 2010 #2

    Andrew Mason

    User Avatar
    Science Advisor
    Homework Helper

    Define compressibility first. Then show us your work for the isothermal case.

    Write out the expression for compressibility in the adiabatic case (how are P and V related in a (reversible) adiabatic compression?).

    AM
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook