File:Translational motion.gif
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atmosfera
Summary
| Description |
English: Motion of gas molecules.
The randomized thermal vibrations of fundamental particles such as atoms and molecules—gives a substance its “kinetic temperature.” Here, the size of helium atoms relative to their spacing is shown to scale under 1950 atmospheres of pressure. These room-temperature atoms have a certain, average speed (slowed down here two trillion fold). At any given instant however, a particular helium atom may be moving much faster than average while another may be nearly motionless. The rebound kinetics of elastic collisions are accurately modeled here. If the velocities over time are plotted on a histogram, a Maxwell-Boltzmann distribution curve will be generated. Five atoms are colored red to facilitate following their motions. Note that whereas the relative size, spacing, and scaled velocity of the atoms shown here accurately represent room-temperature helium atoms at a pressure of 1950 atmospheres, this is a two-dimensional scientific model; the atoms of gases in the real world aren’t constrained to moving in two dimensions in windows precisely one atom thick. If reality worked like this animation, there would be zero pressure on the two faces of the box bounding the Z-axis. The value of 1950 atmospheres is that which would be achieved if room-temperature helium atoms had the same inter-atomic separation in 3-D as they have in this 2-D animation.Español: Animación mostrando la agitación térmica de un gas. Cinco partículas han sido coloreadas de rojo para facilitar el seguimiento de sus movimientos.
Русский: Хаотическое тепловое движение на плоскости частиц газа таких как атомы и молекулы
Français : Animation montrant l'agitation thermique affectant les molécules d'un gaz. Cinq d'entre elles sont colorées à seule fin de suivre plus facilement leur mouvement individuel. |
| Date | |
| Source | Own work |
| Author | A. Greg (Greg L at English Wikipedia) |
| Other versions |
Single frame (for thumbnail purposes) Derivative works of this file:
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Licensing
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This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship. |  |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:31, 28 March 2008 | 300 × 263 (398 KB) | Greg A L | ||
| 18:44, 30 October 2006 | 300 × 263 (398 KB) | EdC | {{Information |Description=thermal motion of gas molecules |Source=English wikipedia |Date=August 25th 2006 |Author=A.Greg, en:user:User:Greg L |Permission= |other_versions= }} |
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The following pages on the English Wikipedia use this file (pages on other projects are not listed):
- Chemosynthesis (nanotechnology)
- Diffusion
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- Equipartition theorem
- H-theorem
- Kinetic theory of gases
- Neutron moderator
- Temperature
- Thermodynamic temperature
- User:Dhatfield/Illustrators
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- User talk:Greg L
- User talk:Greg L/Archive 1
- User talk:Jimbo Wales/Archive 56
- Wikipedia:Featured picture candidates/January-2007
- Wikipedia:Featured picture candidates/Translational Motion
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- Wikipedia:Featured picture candidates/delist/Translational Motion
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- Wikipedia:Featured pictures thumbs/07
- Wikipedia:Reference desk/Archives/Science/2008 November 6
- Wikipedia:Reference desk/Archives/Science/2012 June 8
- Wikipedia:Today's featured picture (animation)/May 14, 2007
- Wikipedia:Village pump (proposals)/Archive AK
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- Portal:Physics/2007 Selected pictures
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