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step by step quide-thermodynamics

  • 01-11-2009 1:03pm
    #1
    B1977
    Registered Users, Registered Users 2 Posts: 410 ✭✭


    Im looking for info on any websites that provide a step by step guide to answering maths or thermodynamics questions,if you supply the question:confused:


Comments

  • #2
    Podge_irl
    Moderators, Sports Moderators Posts: 28,138 Mod ✭✭✭✭Podge_irl


    That's gonna be pretty hard to find, seeing as its essentially somewhere that will do your work for you. I certainly don't know of any such site. You can, however, put up your question here and some people might give you some suggestions or pointers (not me, I suck at thermodynamics).


  • #3
    B1977
    Registered Users, Registered Users 2 Posts: 410 ✭✭B1977


    A piston-cylinder device contains 0.05 m3 of water at 200kPa and 25ºC. The cross sectional area of the piston is 0.25 m2. Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.2 m3 the piston reaches a linear spring whose spring constant is 150kN/m. More heat is transferred to the water until the piston rises 30 cm more. Determine:
    (i) The final pressure and temperature and
    (ii) The work done during this process. Also, show the process on a P-V diagram.

    Could anyone tell me the way to answer this question


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