begin mathsize 36px style K subscript f. M space equals space T subscript 0 space minus space T subscript f end style

K=  Freezing Point Depression Coefficient ; M = Molarity of the solution (when solute is added) ; T0 = Freezing Point of the pure solvent; T= Freezing Point of the solution

T0

Tf

Kf

M

 
Freezing point depression (the freezing point goes down) occurs when solute is added to the pure solvent. Thus the amount of depression depends on the amount of solute added into the solution, i.e depends on the molarity (M) of the solution. Thus by the knowledge of the "Freezing Point Depression Coefficient" one can easily obtain the freezing point depression of the component ( i.e the solvent). To calculate the "Freezing Point Depression Coefficient" use this calculator: http://calistry.org/calculate/freezingPointDepressionCoeff    

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