HW 4-30-09a

HW 4-30-09a - Diffusion – random and continuous motion of...

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Joseph Leonard Green H P306 #1-4 4/30/09 1. Use the kinetic molecular theory to explain each of the following properties of gases: expansion, fluidity, low density, compressibility, and diffusion. Expansion – gas particles move rapidly in all directions without significant attraction or repulsion Fluidity – the attractive forces between particles are insignificant, so gas particles slide past one another easily Low density – the particles are much farther apart in the gaseous state Compressibility – compression forces the gas particles, which are initially very far apart, are crowded close together
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Unformatted text preview: Diffusion – random and continuous motion of molecules carries them throughout the available space 2. Describe the conditions under which a real gas is most likely to behave ideally. Nonpolar diatomic molecules, such as N 2 and O 2 , that do not attract or repulse on another 3. State the two factors that van der Waals proposed to explain why real gases deviate from ideal behavior. Pressure and temperature 4. Which of the following gases would you expect to deviate significantly from ideal behavior: He, O 2 , H 2 , H 2 O, N 2 , HCl, or NH 3 ? H 2 O, HCl, NH 3...
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