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Why is the height /1000 ?

  1. Oct 1, 2013 #1
    Why is the height "/1000"?

    1. The problem statement, all variables and given/known data

    In the attached example problem, why did the height, originally in millimeters then converted to meters, be divided by 1000?

    Note: This is a thermodynamics related question? Or at least from a thermo textbook.

    I thought that the units were fine when using 0.750 m.
     

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    Last edited: Oct 1, 2013
  2. jcsd
  3. Oct 1, 2013 #2

    berkeman

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    Staff: Mentor

    The equation is poorly written, IMO. The /1000 at the end is to convert from Pa to kPa. It's not an attempt to convert mm to m, since they did that with the 750mm = 0.750m already. If they would have put parens around the whole numerator, that would have made it a bit clearer. Better yet, they should have used parens, and then multiplied by 1: 1 = 1kPa/1000Pa
     
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