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

Gas Law Program

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?