Lecture Notes - Cloudfront.net

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Lack of Intermolecular Forces in Gases(g)
What’s the best way to describe gases at the chemical
level?
Q:
Answer
1. Think of gases as consisting of individual molecules like
O2, N2, CH4 ect…(see O2, N2, CH4, & SO2 overhead)
2. These individual molecules are in “constant random
motion with no pattern.” They are “fluid”
3. They can and will collide with each other & the walls of
their containter(pressure), but because they are moving
so fast, they do not attract or repel each other.
4. The forces between them are “negligible”
Q:
How is this explanation at the chemical level observed in
the world around me?
A: Think hard about these examples(see burning match, see ballon.)
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