Chapter 8.9, Problem 3QQ

Interpretation Introduction

Interpretation:

The freezing point for a solution containing $\text{1}\text{.00}\text{mol}$ of glucose dissolved in $\text{1}\text{.00}\text{kg}$ water has to be identified from the given options.

Concept Introduction:

Freezing point is the temperature at which liquid turns into solid.

Freezing point depression ${\text{(ΔT}}_{\text{f}}\text{)}$ is distinction between freezing point of the pure solvent ${\text{(T}}_{\text{f}}^{\text{°}}\text{)}$ and the freezing point of the solution ${\text{(T}}_{\text{f}}\text{)}$.

  ${\text{ΔT}}_{\text{f}}{\text{= K}}_{\text{f}}\text{m}$

Where,

  ${\text{ΔT}}_{\text{f}}-$ Change in freezing point

  ${\text{K}}_{\text{f}}-$ Molal freezing point constant

  m- molality of the solution

Note:

The freezing point of one kilogram of water will be lower by $\text{1}\text{.86°C}$ by the addition of one mole of solute particles.