gas laws

• Boyle's Law 


  For a fixed mass of enclosed gas at a constant temperature, the product of the pressure and volume remains constant P1V1 = P2V2
• Charles' Law 


  for a fixed mass of enclosed gas at constant pressure, the ratio of volume and temperature is constant
• absolute zero 


  -273 degrees celsius
• ideal gas law 


  boyle's law + charles' law PV = nRT
• simplified ideal gas law 


  P1V1/T1 = P2V2/T2
• partial pressure of a gas


  the pressure exerted by a single gas in a mixture of gasses
• Dalton's Law 


  the total pressure of a mixture of gases = the sum of partial pressures exerted by the gases if they were present separately
• Henry's Law


  the concentration or solubility of a gas in a liquid is proportional to the partial pressure of that gas above the surface
• solubility 


  maximum amount of a solute that can dissolve in a certain amount of a solvent
• alveolus 


  0.2mm diameter, wall 4x10^-6 thick
• respiratory illnesses


  asthma and croupe