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Code Number: 4F10.25
Demo Title: Maxwell's Demon
Condition: Good
Principle: Entropy
Area of Study: Thermodynamics
Equipment:
Computer programs and on-line applets, Vortex tube, digital thermometers, compressed air hose.
Procedure:
There are many programs, applets, apps, and screen savers that will simulate a Maxwell's Demon situation. Choose the appropriate program or applet for your presentation.
The vortex tube is a commercial model designed for machinist type work. With the air pressure we have available in our Lecture Rooms a 50 degree C temperature difference is easily achievable.
The Jack-in-the-Box can be used as a humorous model to explain Maxwell's demon.
References:
- Paul Hewitt, "Answer to September Figuring Physics Question", TPT, Vol. 53, #7, Oct. 2015, p. 442.
- Harvey S. Leff, "Removing the Mystery of Entropy and Thermodynamics - Part V", TPT, Vol. 50, #5, May 2012, p. 274.
- Harvey S. Leff, "Removing the Mystery of Entropy and Thermodynamics - Part IV", TPT, Vol. 50, #4, Apr. 2012, p. 215.
- Harvey S. Leff, "Removing the Mystery of Entropy and Thermodynamics - Part III", TPT, Vol. 50, #3, Mar. 2012, p. 170.
- Harvey S. Leff, "Removing the Mystery of Entropy and Thermodynamics - Part II", TPT, Vol. 50, #2, Feb. 2012, p. 87.
- Harvey S. Leff, "Removing the Mystery of Entropy and Thermodynamics - Part I", TPT, Vol. 50, #1, Jan. 2012, p. 28.
- James H. Larson, "Maxwell's Demon", TPT, Vol. 13, #8, Nov. 1975, p. 503.
- David C. Schoepf, "A Statistical Development of Entropy for the Introductory Physics Course", AJP, Vol. 70, #2, Feb. 2002, p. 128.
- Harvey S. Leff and Andrew F. Rex, "Resource Letter MD-1: Maxwell's Demon", AJP, Vol. 58, #3, Mar. 1990, p. 201.
- Harvey S. Leff, "Maxwell's Demon, Power, and Time", AJP, Vol. 58, #2, Feb. 1990, p. 135.
- A. F. Rax, "The Operation of Maxwell's Demon in a Low Entropy System", AJP, Vol. 55, #4, Apr. 1987, p. 359.
- Harvey S. Leff, "Available Work from a Finite Source and Sink: How Effective is a Maxwell's Demon?", AJP, Vol. 55, #8, Aug. 1987, p. 701.
- Katie Robertson, "More on the Demons of Thermodynamics - Robertson Replies", Physics Today, Vol. 76, #3, March 2023, p. 13.
- Harvey S. Leff, Andrew F. Rex, "More on the Demons of Thermodynamics", Physics Today, Vol. 76, #3, March 2023, p. 13.
- Jean L. Jeener, "More on the Demons of Thermodynamics", Physics Today, Vol. 76, #3, March 2023, p. 12.
- Daniel P. Sheehan, Garret Moddel, James W. Lee, "More on the Demons of Thermodynamics", Physics Today, Vol. 76, #3, March 2023, p. 12.
- Katie Robertson, "The Demons Haunting Thermodynamics", Physics Today, Vol. 74, #11, Nov. 2021, p. 44.
- Eric Lutz and Sergio Ciliberto, "Information: From Maxwell's Demon to Landuaer's Eraser", Physics Today, Vol. 68, #9, Sep. 2015, p. 30.
- Bruce Sherwood, "Modeling Maxwell's Demon", Physics Today, Vol. 68, #3, Mar. 2015, p. 9.
- Zhiyue Lu, Dibyendu Mandal, Christopher Jarzynski, "Engineering Maxwell's Demon", Physics Today, Vol. 67, #8, Aug. 2014, p. 60.
- Carson I. A. Ritchie, "The Jack-in-the-Box", Making Scientific Toys, p. 167.
- Borislaw Bilash II and David Maiullo, "Entropy Card Trick", A Demo a Day: A Year of Physics Demonstrations, p. 236.
- Larry Niven, "Unfinished Story", Playgrounds of the Mind, ISBN: 0-812-51695-8, p. 449.
- W. Bolton, "The Distribution of Energy in a 'Gas' in Thermal Equilibrium", Book I - Properties of Materials, Physics Experiments and Projects, 1968, p. 32 - 33.