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Kinetic
Molecular Theory |
| 1.
Everything is composed of particles. |
| 2.
In gases, particles are spread apart. In liquids and solids, the
particles are closer together. |
| 3.
Gasa particles are in constant motion. They are really moving
fast. They are traveling about at 1000 m/sec. (Figure out how
many miles per hour that will be. You will find that it is over 3
times the speed of sound- Mach 3!) Liquids and solids are also in
motion, but they are not moving as fast. In fact you might think of
them as squirming around, vibrating or twisting. |
| 4.
There are much greater attractive forces between liquids and gases. |
| 5.
Gas particles are constantly colliding with one another. There are
about 5X109collisions pear second. When the gases
collide, they collide elastically. |
| 6.
High temperatures imply faster motion of the particles. Low
temperatures mean slower motion. |
For a marvelous interactive applet
that allows you to picture how molecules in motion relate to temperature,
pressure and volume measurements of gases, go to http://learn.chem.vt.edu/chemistry/general/resources1035.html
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