Question
What is the relationship between the eubllioscopic constant and the elevation in boiling point of the solution?
Solution
Answer:
the elevation of boiling point (ΔTb) is directly proportional to the molal concentration of
the solute in a solution. Thus
ΔTb ∝ m
or ΔTb = Kbm
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.
