Find the freezing point depression of solution having molality $0.25 \mathrm{~mol} \mathrm{~kg}^{-1}$.…

Find the freezing point depression of solution having molality $0.25 \mathrm{~mol} \mathrm{~kg}^{-1}$. $\left(\mathrm{K}_{\mathrm{f}}=4.0\right)$
  1. $2.5 \mathrm{~K}$
  2. $3.0 \mathrm{~K}$
  3. $2.0 \mathrm{~K}$
  4. $1.0 \mathrm{~K}$

Solution

$\Delta \mathrm{T}_{\mathrm{f}}=\mathrm{K}_{\mathrm{f}} \mathrm{m}=4 \mathrm{x} 0.25=1.0 \mathrm{~K}$

Asked in: MHT CET 2022 (07 Aug Shift 2)

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