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1st Law of Thermodynamics (Open System)

  1. Oct 4, 2013 #1
    1. The problem statement, all variables and given/known data
    Is this equation correct for the 1st Law of Thermodynamics for an Open System (Control Volume):
    Q - W + min(h + 1/2(c^2) + gz)in - mout(h + 1/2(c^2) + gz)out = Δ(U 1/2(c^2) + gz).

    2. Relevant equations
    None really.

    3. The attempt at a solution
    This isn't so much an assignment question as a possible discrepancy in the notes. I would've thought this Δ(U 1/2(c^2) + gz) should be Δ(U 1/2(mc^2) + mgz), am I correct in thinking that or not? Thanks.
  2. jcsd
  3. Oct 10, 2013 #2
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