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A piston-cylinder device contains 0.05 m3 of water at 200kPa and 25ºC

  1. Nov 12, 2009 #1
    1. The problem statement, all variables and given/known data 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.



    2. Relevant equationsPV=MRT



    3. The attempt at a solution55 KJ
     
  2. jcsd
  3. Nov 12, 2009 #2

    Redbelly98

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    Re: Thermodynamics

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