Chapter 23, Problem 13A

To determine

To Explain: Antifreeze or any soluble substance put in water lowers its freezing temperature.

Explanation of Solution

Introduction:

The soluble substance in water leads to lowering of the freezing point as the solute particle does not allow the water molecules to settle down to form a solid.

As to make solid, it needs to be cooled at a lower temperature than its freezing point. For the lower freezing point to be obtained, some solute particles are added in the water.

Conclusion:

The solute particle will act as barriers in formation of solid substance, so to make the solid one would have to cool to a lower temperature below the freezing point.