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ChemistryLiquid SolutionAbnormal Colligatiove PropertiesEasy2 minPYQ_2025

ChemistryEasysingle choice

Calculate the cryoscopic constant of solvent if depression in freezing point of 0.4 m solution of nonvolatile solute is 1.8 K .

Options:

Answer:

Solution:

The depression in freezing point is given by the formula:

$Δ T_{f} = K_{f} \times m$

Rearranging the formula to solve for the cryoscopic constant $K_{f}$ :

$K_{f} = \frac{Δ T _{f}}{m}$

Substituting the given values, $Δ T_{f} = 1.8 K$ and $m = 0.4 m$ :

$K_{f} = \frac{1.8}{0.4} = 4.5 K kg mol^{- 1}$

Answer: $4.5 K kg mol^{- 1}$

Stream:MHT_CETSubject:ChemistryTopic:Liquid SolutionSubtopic:Abnormal Colligatiove Properties

⏱ 2mℹ️ Source: PYQ_2025

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