Chapter 23, Problem 37E

(a)

Interpretation Introduction

To explain: The effect on the phase of ${\text{CO}}_{\text{2}}$ when the pressure is reduced on solid ${\text{CO}}_{\text{2}}$.

(b)

Interpretation Introduction

To explain: The effect on the phase of ${\text{CO}}_{\text{2}}$ when the temperature is reduced on gaseous ${\text{CO}}_{\text{2}}$ held at a pressure of $20\text{ atm}$.

(b)

Interpretation Introduction

To explain: The effect on the phase of ${\text{CO}}_{\text{2}}$ when the temperature is increased on solid ${\text{CO}}_{\text{2}}$ held at a pressure of $0.8\text{ atm}$.