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| | Real Gases |
 | | Although the ideal gas model is very useful, it is only an approximation of the real nature of gases, and the equations derived from its assumptions are not entirely dependable. |
 | | Thus, the pressure of a real gas, with attractions between the particles, will be less than the pressure predicted for an ideal gas, with no attractions between the particles. |
 | | In a real gas, however, the attractions between the particles will pull your particle back toward the center of the container, slow it down, and decrease the force of its collision with the wall (Figure 1). |
| www.mpcfaculty.net /mark_bishop/real_gases.htm (1695 words) |
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