Chapter 11, Problem 7E

(a)

Interpretation Introduction

To determine: The normal boiling and freezing point of the substance.

(b)

Interpretation Introduction

To determine: The physical state of the substance under the given three conditions.

Step 1:

Interpretation Introduction

To determine: The physical state of the substance when $T=150\text{K}$ and $P=0.2\text{atm}$ .

Step 2:

Interpretation Introduction

To determine: The physical state of the substance when $T=100\text{K}$ and $P=0.8\text{atm}$ .

Step 3:

Interpretation Introduction

To determine: The physical state of the substance at $T=300\text{K}$ and $P=1.0\text{atm}$ .

(c)

Interpretation Introduction

To determine: The triple point of the substance.