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Homework Help: Calorimeter problem

  1. May 3, 2007 #1
    1. The problem statement, all variables and given/known data
    calorimeter mass = 60 g
    calorimeter and water mass = 290 g
    temperature of cal. and water = 30 C
    temp of steam = 90 C
    mass of cal, water, and steam = 300 g
    specific heat of cal = .1 cal/g C
    final temp of cal, water, and steam = 80 C
    Find the Lv for this steam.

    2. Relevant equations
    (a space between the variables means multiply)
    m Lv + m c (change in temp) = m c (change in temp) + m c (change in temp)
    m Lv is steam, the 1st m c T is steam water, the 2nd is water, and the 3rd is the cal, and i actually have no idea what Lv is...

    3. The attempt at a solution
    10 x Lv + 10 2.01 -10 = 230 4.19 50 + 60 (.1 x 4.19) 50
    i came up with 4964.3, but i dont know if it is right, or if i even did it right.
  2. jcsd
  3. May 4, 2007 #2


    User Avatar
    Gold Member

    You have not described the scenario, just a list of values. I don't know what Lv is either, that's for you to tell us.
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