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Thermodynamics piston stetch question

  1. Mar 3, 2016 #1
    1. The problem statement, all variables and given/known data

    12821987_10205499477355598_1211638600_n.jpg

    2. Relevant equations

    specific volume = volume / mass
    dryness fraction = mass of vapor / total mass
    pressure

    3. The attempt at a solution
    part(a) is totally not relevant to part(b) and I finished part (b)i
    dryness fraction = 0.5244
    specific volume = 0.0502 m^3/kg
    specific internal energy = 1800 KJ/kg

    Then, I want to use the relationship between the volume of original and final state to final out the pressure. However, I can't use the above information to calculate the answer.
    Therefore, I want to ask about the question about (b)ii - v.
    Thanks.
     
  2. jcsd
  3. Mar 3, 2016 #2
    What temperature would be consistent with only having saturated vapor at the final specific volume?
     
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