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Kinetic Molecular Theory
Kinetic Molecular Theory
Intermolecular Forces-what makes things solid, liquid or gas? 0London Dispersion Forces-a force between
two non-polar molecules during a temporary dipole0Hydrogen Bonds-a bond between hydrogen
and FON0Dipole-Dipole Forces-when the negative
end and positive end of two polar molecules are attracted to each other
London Dispersion Forces
London Dispersion Forces
Hydrogen Bonds
Dipole-Dipole Forces
Kinetic Molecular Theory – Properties of Gases
0Gas particles do not attract or repel each other0Gas particles are smaller than the distances
between them0Gas particles are in constant, random motion0Collisions of gases are elastic (no energy is
lost)0All gases have the same kinetic energy at a
given temperature and pressure
Diffusion-gases mix until they are evenly distributed
Effusion- gases escaping through a hole
Gas Pressure Units
Dalton’s Law of Partial Pressures
Which of the following is true?
00.80 atm = 0.80 torr04180 mmHg = 5573000433 torr = 433 mmHg02.3 atm = 1748 torr
The pressure of a mixture of nitrogen, carbon dioxide, and oxygen
is 150 kPa. What is the partial pressure of oxygen if the partial
pressures of the nitrogen and carbon dioxide are 100 kPA and 24 kPa,
respectively?
The pressure of the hydrogen and water vapor mixture is 600 mmHg. What is the partial pressure of the hydrogen gas, in atm, if the partial pressure of water vapor is 10.52
mmHg?
