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Compressed water confusion

  1. Dec 8, 2011 #1
    1. The problem statement, all variables and given/known data
    In a constant pressure process ant 1 bar determine how much heat must be added to raise the temperature of 2kg of compressed water at a temp of 50C so that it become superheated steam at a temp of 200C?

    u2=2659KJ/Kg

    2. Relevant equations
    W=-P(V2-V1) Q+W=U2-U1


    3. The attempt at a solution

    Not really sure how to work out the volumes and struggling with how to find u1 as its compressed water.

    Do i find out the volumes by attaining the specific volume and multiplying by the mass
     
  2. jcsd
  3. Dec 8, 2011 #2
    Ever heard of steam tables?
     
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