Gas_Laws__chapter_10 - Physical Characteristics of Gases...

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Unformatted text preview: Physical Characteristics of Gases =chapter 10 pg 303 Kinetic Theory = describes the motion of particles and attempts to explain why gas laws are true. This theory is based on the fact that particles of matter are always in motion . Ideal Gas = imaginary gas that perfectly fits all the assumptions of the kinetic- molecular theory kinetic- molecular theory 1. A gas is composed of tiny particles called molecules or atom. The molecules are far apart and have empty space in between. kinetic- molecular theory 2. These par ticles ar e in continual motion which depend upon temper atur e and under go collisions. kinetic- molecular theory 3. .The total kinetic ener gy of colliding par ticles r emain constant ( elastic ) kinetic- molecular theory 4. Molecules of the same gas do not have the same speed. kinetic- molecular theory 5. Ther e ar e no for ces of attr action between the molecules This is an assumption by the ideal gas theor y C. Pr oper ties of gases Expansion = have no definite shape or volume. Gas par ticles move r apidly in all dir ections with no attr actions to each other C. Pr oper ties of gases Pr essur e = gases exer t for ce on the container C. Pr oper ties of gases Low density = because gas par ticles ar e so far apar t then they ar e about 1/1000 th density of the solid or liquid phase C. Pr oper ties of gasesC....
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This note was uploaded on 02/04/2010 for the course CH 301 taught by Professor Fakhreddine/lyon during the Fall '07 term at University of Texas at Austin.

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Gas_Laws__chapter_10 - Physical Characteristics of Gases...

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