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Homework Help: Impossible tHERMODYNAMICS Problem

  1. Jan 20, 2010 #1
    1. The problem statement, all variables and given/known data
    Given: latent heat of vaporization of water = 2.26 × 106 J/kg .
    Nine gram of water changes from liquid to vapor at a pressure of one atmosphere. In the process, the volume changes from 0.5 cm3 to 2165 cm3.
    Find the work done. Answer in units of J.

    Find the increase in internal energy of the water.
    Answer in units of J

    2. Relevant equations

    Latent Heat=2.26x10^6(kg)
    this doesn't work

    W=change in volume * pressure

    3. The attempt at a solution
    i have plugged in the values for the first section and they do not work. Changing to pascals/kg aren't right.
  2. jcsd
  3. Jan 21, 2010 #2


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    Can you show your calculations in more detail, specifically the way you addressed the units?
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