Maxwells demon, if it existed, would act as a sort of gate guard by sorting between higherenergy molecules and lowerenergy molecules within an enclosed space. Experimento mental ideado por maxwell en 1867, publicado en theory of heat. Maxwells demon, hypothetical intelligent being or a functionally equivalent device capable of detecting and reacting to the motions of individual molecules. Active transport in cells is carried out by certain proteins, or. Maxwell s demon is a thought experiment created by the physicist james clerk maxwell in 1867 in which he suggested how the second law of thermodynamics might hypothetically be violated. In this context, a pedagogical activity based on the story maxwells demon of gamow is designed, following the didactic outlines suggested by some authors. Since then this being, dubbed maxwell s demon by lord kelvin, has been an active topic of. Maxwells demon is a thought experiment created by the physicist james clerk maxwell in. Maxwell s demon in 1867 james clerk maxwell suggested that a sentient being capable of observing molecular motions might be able to bring about a violation of the second law of thermodynamics through a systematic sorting of molecules. Procurar milions palavras e frases em todos os idiomas.
This page was last edited on 30 january 2019, at 22. Maxwells demon thermodynamics physics khan academy. A thought experiment that seems to defy the 2nd law of thermodynamics. It was imagined by james clerk maxwell in 1871, to illustrate the possibility of violating the second law of thermodynamics. A to b, and only the slower molecules to pass from b to a maxwell, 1871. Maxwell s demon plural maxwell s demons a hypothetical creature created for a thought experiment. A mente malefica do serzinho encapetado agora pode ser mapeada. Pdf the starting process of a pedagogic proposal for the teaching of basic concepts in thermodynamics based on the use of narratives is introduced in. A copy of the license is included in the section entitled gnu free documentation license. As individual gas molecules approach the door, the demon quickly opens and shuts the door so that only fast molecules are. Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1.
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