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Maxwell’s Demon

Maxwell’s Demon. Michael Fechtmann. Thought Experiment. An attempt to violate the Second law Make B hotter than A Let more energetic molecules go to B. Problems. Detect the speed of the molecule- requires energy Entropy Information - Run out of information storage space Opening Door.

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Maxwell’s Demon

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  1. Maxwell’s Demon Michael Fechtmann

  2. Thought Experiment • An attempt to violate the Second law • Make B hotter than A • Let more energetic molecules go to B

  3. Problems • Detect the speed of the molecule- requires energy • Entropy Information - Run out of information storage space • Opening Door

  4. Problems Problems • These arguments assume 2nd law can’t be violated = Circular Logic

  5. Macrocycle / Rotaxane

  6. Sources • http://en.wikipedia.org/wiki/Maxwell%27s_demon • http://web.archive.org/web/20070621222301/http://www.sciencenews.org/articles/20001007/bob9.asp • http://splasho.com/blog/maxwell-thermodynamics-meets-the-demon/ • http://uk.gizmodo.com/maxwells%20demon.jpg

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