Chapter 12, Problem 12.122SP

Interpretation Introduction

Interpretation:

Snow doesn’t melt when salt is spread over it if the temperature of snow is -30 ${}^{\text{o}}\text{C}$

Concept Introduction:

Depression of freezing point is a colligative property and it depends only on solute of solution.

To explain:
Snow doesn’t melt when salt is spread over it if the temperature of snow is -30 ${}^{\text{o}}\text{C}$.