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Thermodynamics Problem

  1. Jun 11, 2007 #1
    1. The problem statement, all variables and given/known data

    In the operation of a heat engine there is a heat flow out of a reservoir and a mechanical work W is done.Explain why this process does not violate the Kelvin Planck statement of the 2nd law.

    2. Relevant equations
    3. The attempt at a solution

    My attempts:Please check if I am correct

    Because in addition to the hot reservoir from which heat flows into
    the system, the heat engine also discards heat into a second colder
    reservoir during its cycle. Thus, it uses the second reservoir required
    by the Kelvin Planck statement.
  2. jcsd
  3. Jun 11, 2007 #2


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