Utilize
the power of multimedia with Gases & Their Properties. This program introduces
students to the physical properties that make gas a unique state of matter.
Video demonstrations reveal that gases occupy volume and have mass. Animations
simulating the movement of gases demonstrate how they behave under changing
factors, such as temperature and pressure. These animations help students
visualize the relationship between the factors that influence gas behavior and
help students understand the gas laws. The history and contributions
scientists made to gas law
behaviors are discussed as students walk through a sample problem of each law.
Finally, the kinetic molecular theory is discussed, and its hypotheses are
used to explain the ideal gas law.
OUTLINE:
I. Introduction A.
States of Matter B. Gases are All Around Us
II. Physical Properties of Gases A.
Gases are a State of Matter 1.
Gases Have Mass 2.
Gases Occupy Space B. Variables used to Describe
Gases 1.
Moles, n 2.
Volume, V a.
Gases completely fill their container b.
Diffusion c.
Compressibility 3.
Temperature, T a.
Kelvin Temperature Scale 4.
Pressure, P a.
Force b.
Examples of Pressure and Force c.
Atmospheric Pressure i.
Barometer d.
Manometer e.
Units of Pressure i.
Unit Conversions ii.
Practice with Conversions f.
Pressure Exerted Depends on Temperature
III. Gas Laws A.
Introduction B. Boyle's Law 1.
PV = CB 2.
P1V1 = P2V2 a.
Example C. Charles's Law 1.
Absolute Zero 2.
V = CCT 3.
V1/T1 = V2/T2 a.
Example D. Combined Gas Law E. Avogadro's Law 1.
V1/n1 = V2/n2 2.
STP and Standard Molar Volume a.
Example b.
Additional Example 3.
Using Avogadro's Law F. Ideal Gas Law 1.
PV = nRT a.
Example G. Dalton's Law of Partial
Pressure 1.
Example H. Graham's Law of Effusion 1.
Example I. Review
IV. Kinetic Molecular Theory A.
Assumptions of the Kinetic Molecular Theory for Gases 1.
Particles are in Constant, Random Motion 2.
Gas Particles have no Volume 3.
Average Kinetic Energy 4.
Perfectly Elastic collisions 5.
Particles Do Not Attract or Repel 6.
Summary B. Kinetic Molecular Theory and
Gas Laws 1.
Charles's Law 2.
Avogadro's Law 3.
Boyle's Law C. Real Gases a.
Deviations from Ideal Gas Law
V. Conclusion A.
SCUBA Diving B. Conclusion
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