File:Translational motion.gif

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search
Translational_motion.gif(300 × 263 pixels, file size: 398 KB, MIME type: image/gif, looped, 370 frames, 19 s)

Summary[edit]

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:

OGV derived from GIF using ffmpeg2theora version 0.24

OGV derived from GIF using ffmpeg2theora 0.25

Licensing[edit]

Greg L at the English language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Greg L
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.
This licensing tag was added to this file as part of the GFDL licensing update.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current03:31, 28 March 2008Thumbnail for version as of 03:31, 28 March 2008300 × 263 (398 KB)Greg A L (talk | contribs)
18:44, 30 October 2006Thumbnail for version as of 18:44, 30 October 2006300 × 263 (398 KB)EdC (talk | contribs){{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= }}
  • You cannot overwrite this file.

File usage on other wikis

The following other wikis use this file:

View more global usage of this file.

Metadata