File:Translational motion.gif
Translational_motion.gif (300 × 263 pixel, dimensione del file: 398 KB, tipo MIME: image/gif, ciclico, 370 frame, 19 s)
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Dettagli
| Descrizione |
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. |
| Data | |
| Fonte | Opera propria |
| Autore | A. Greg (Greg L di Wikipedia in inglese) |
| Altre versioni |
Single frame (for thumbnail purposes) Opere derivate da questo file: |
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Licenza
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Questa semplice figura geometrica non è tutelabile dalle leggi sul diritto d’autore ed è, quindi, di pubblico dominio in quanto costituita da elementi del patrimonio comune. |  |
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| Data/Ora | Miniatura | Dimensioni | Utente | Commento | |
|---|---|---|---|---|---|
| attuale | 05:31, 28 mar 2008 | | 300 × 263 (398 KB) | Greg A L | |
| 20:44, 30 ott 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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