The depression in freezing point of 0.1 M aqueous solutions of HCl, CuSO4 and K2SO4 are in the ratio

Question

The depression in freezing point of 0.1 M aqueous solutions of HCl, CuSO4 and K2SO4 are in the ratio (A) 1: 1: 1.5 (B) 1: 2: 3 (C) 1: 1: 1 (D) 2: 4: 3

Tardigrade Admin · Accepted Answer

ΔTf = iKfm Thus, ΔTf propto i (as concentration is same for all solutions) i for HCl = 2, i for CuSO4 = 2, i for K2SO4 = 3 Thus, ratio of depression in freezing point = 2: 2: 3 = 1: 1: 1.5

Q. The depression in freezing point of $0.1 M$ aqueous solutions of $H Cl$ , $C u S O_{4}$ and $K_{2} S O_{4}$ are in the ratio

1 : 1 : 1.5

1 : 2 : 3

1 : 1 : 1

2 : 4 : 3

$Δ$ T_f = iK_fm
Thus, $Δ$ T_f $\propto$ i (as concentration is same for all solutions)
i for HCl = 2, i for CuSO₄ = 2, i for K₂SO₄ = 3 Thus, ratio of depression in freezing point
= 2 : 2 : 3 = 1 : 1 : 1.5

Q. The depression in freezing point of 0.1M aqueous solutions of HCl, CuSO4​ and K2​SO4​ are in the ratio