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: Determine the net work done

  1. Feb 19, 2006 #1
    Wbc=0 Wab=-3315.4J Wca=nRTLn(Va/Vc)=-2108.98

    The net heat added to the gas for the entire cycle is 1200J. Determine the net work done by the gas on its surroundings for the entire cycle.

    Don't you just add the works?

    Attached Files:

  2. jcsd
  3. Feb 19, 2006 #2
    why cant i see the attachments?
    01-18-2006 05;29;34PM.JPG
  4. Feb 19, 2006 #3
    does anyone know how to do this?:confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused:
  5. Feb 20, 2006 #4

    Tom Mattson

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Because they have to be approved by a moderator. We've had people attach porn in the past, so every attachment goes through a moderation queue. I've just approved all your attachments.

    Are you sure about that? ab is an expansion, while ca is a compression. [itex]\int p dV[/itex] has a different sign along each path.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook