Phases of matter and vapor pressure.
Date Submitted: 02/25/2004 14:02:14
Category: / Science & Technology / Chemistry
Length: 4 pages (1158 words)
Category: / Science & Technology / Chemistry
Length: 4 pages (1158 words)
How do we describe phase changes?
What are the phases of matter?
The four phases of matter include:
oSolids
oLiquids
oGases
oPlasmas
A phase change involves a change in the physical state of a substance from one phase to another such as: or vice versa
oSolid- liquid
oLiquid- gas
oSolid - gas
Solids
The physical state of matter characterized by particles that appear to vibrate about fixed points. Particles of a solid (crystalline) are arranged …
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…energy at the expense of the other
oThe average kinetic energy of all the molecules is proportional to the absolute temperature- in Kelvin degrees
oAll of these assumptions in KMT of gases explain and predict the behavior and properties of gases
oGases are fluids- they flow just as liquids do. Since the particles of a gas have no attractive forces between them to a particular configuration, gas particles are free to flow wherever the want
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