Chapter 15, Problem 50A

Interpretation Introduction

Interpretation: On molecular level, the reason why the increase in boiling point is a colligative property has to be explained.

Concept Introduction: Colligative properties depend on the number of solute particles in the solution.

The number of particles that the solute will dissociate upon mixing with the solvent is represented by “i” .

Answer to Problem 50A

In order to boil, the formation of bubble must take place. The formation of bubbles is prevented by the particles and is based on the number of particles present. Hence, it is a colligative property.

Explanation of Solution

Colligative properties depend on the number of solute particles in the solution. The boiling point of a solvent would increase when a solute is dissolved in it. This is known as elevation of boiling point. The boiling point elevation increases with increase in the amount of solute present in the solution and not based on the identity of the solute, so it is considered as a colligative property.

On molecular level, in order to boil, the formation of bubble must take place. The formation of bubbles is prevented by the particles and is based on the number of particles present. Hence, it is a colligative property.

Conclusion

On molecular level, in order to boil, the formation of bubble must take place. The formation of bubbles is prevented by the particles and is based on the number of particles present. Hence, it is a colligative property.