- Gases consist of small particles
- Particles are in constant, random, straight-line motion
- The molecules in a gas occupy no volume
- Collisions between molecules are perfectly elastic
- The average kinetic energy of gas particles depends on temperature
Gases behave most ideally at low pressure and high temperature
The most ideal gases are hydrogen and helium
The most ideal gases are hydrogen and helium
Combined Gas Law: PV/T = PV/T
Pressure and volume are inversely related
Pressure and temperature & volume and temperature are directly related
Temperature must be in Kelvin to do calculations
Avogadro's Hypothesis: Equal volumes of gas at the same temperature and pressure have the same number of particles
Dalton's Law of Partial Pressure: The total pressure is equal to the sum of the individual pressures
Graham's Law of Diffusion: Lighter gases diffuse at a faster rate
Table H
Vapor pressure increases as temperature increases
Vapor pressure increases as temperature increases
Vapor pressure increases as the forces of attraction between molecules decrease
