Equilibrium

Freezing point of an aqueous solution is (-0.186)°C. Elevation of boiling point of the same solution is Kb = 0.512 °C, Kf = 1.86 °C, find the increase in boiling point.

  1. 0.186 °C
  2. 0.092 °C
  3. 0.0512 °C
  4. 0.2372 °C

Answer

We know ΔTb = mkb and ΔTf = mKf

ΔTb/ΔTf = Kb/Kf

Find ΔTb which would come 0.0512°C

The correct option is C.