Chapter 6, Problem 4RQ

(a)

Interpretation Introduction

Interpretation:

Change of state in Meting and in freezing should be identified.

Concept introduction:

The rise in temperature results in absorption of heat by the compound and results in breakdown of bonds and thus the solid phase turns into liquid phase which gets turn into vapor phase with the absorption of heat whereas when the compound looses heat or energy, the vapor turns into liquid which gets further solidifies on loosing more heat with the decrease in temperature.

(b)

Interpretation Introduction

Interpretation:

Change of state in vaporization and in condensation should be identified.

Concept introduction:

The rise in temperature results in absorption of heat by the compound and results in breakdown of bonds and thus the solid phase turns into liquid phase which gets turn into vapor phase with the absorption of heat whereas when the compound looses heat or energy, the vapor turns into liquid which gets further solidifies on loosing more heat with the decrease in temperature.