Educator

Partial Pressure, Real Gases, Atmospheric Pollution

• Mole fraction = # mol. component/total # mol. of all components

• Partial pressure = mol.fraction x total P

• Dalton’s Law: total P = sum of all partial P

• Gas stored over water: total P = partial P + v.p. of water

• Real gases; van der Waals’ formula

• Real gases depart from ideal at low T and high P

• Pollutants of atmosphere: ozone hole

• Chlorofluorocarbons : destroy ozone; greenhouse effects

• Oxides of nitrogen in auto exhaust

• Sulfur oxides from fuels and metal refining

• Acid rain from N and S oxides