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Homework Help: Another Entropy Question

  1. Dec 17, 2008 #1
    1. The problem statement, all variables and given/known data
    Each end of a metal wire is in thermal contact with a different heat reservoir.
    Reservoir 1 is at a temperature of 752 K, and reservoir 2 is at a temperature of
    345 K. Compute the total change in entropy that occurs from the conduction of
    1096 J of heat through the wire.

    2. Relevant equations
    dS = dQ / T

    3. The attempt at a solution
    I'm really unsure how to solve this question. Would I do something like this:

    -1096/752 + 1096/345 =
    -1.457 + 3.177 = 1.72 J/K

    Or am I totally off base on this one?
  2. jcsd
  3. Dec 17, 2008 #2

    Andrew Mason

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    Science Advisor
    Homework Helper

    I am not sure why you are unsure. You have the right equation and you have the right answer.

  4. Dec 17, 2008 #3
    Wow, okay... Thanks for the reassurance then! :)

    The question has a point value of 6 points out of a 25 point homework assignment, so I thought there might be more to it than that, but apparently I thought wrong.
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