40 g NaOH (i=2) is dissolved in 1L volatile solvent vapour pressure  of this solution becomes equal to its solid phase at 300K. What is the freezing point of pure solvent.

(Density = 1g/mL) (kf=1.8 k kgmol-1)

1. 296.4 K

2. 303.6 K 

3. 297.5 K

4. 302.4 K

Concept Videos :-

#11 | Depression in Freezing Point
#12 | Ques : Elevation in Boiling Point & Depression in Freezing Point

Concept Questions :-

Depression of Freezing Point
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