Thus
DTb µ m
(1 29)
or
DTb = Kb m
(1 30)
Here m (molality) is the number of moles of solute dissolved in 1 kg
of solvent and the constant of proportionality, Kb is called Boiling Point
Elevation Constant or Molal Elevation Constant (Ebullioscopic
Constant) The unit of Kb is K kg mol-1