UPSEE Solved Model Paper 3

Mixture contains equal volumes of ethylene glycol and water 1 mL water = 1 water (w2,, solvent) 1 mL ehtylene glycol = 1.13g ehtylene glycol (w1, solute)
Depressing in freezing point ΔTf =

1000Kf×w1

m1w2

=

1000×1.86×1.113

62×1

×1
= 33.39°C
∴ Freezing point of mixture = 0 - 33.39°C