CH1012
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1 COMPONENT SYSTEMS II
Vapour Pressure  increases with T.
TF = freezing point
TB = boiling point 
 (V.P. = external pressure)
Cairns (0m,760 torr)
= 100oC
Bartle Frere (1615m,613 torr)
= 94oC
liquid
phase boundary
 
      gas
 intermolecular
   forces alter
                                                                    b.p.
Fraction of molecules with              
sufficient Ek to escape liquid