Chapter 18, Problem 18.46SP

(a)

Interpretation Introduction

To determine:

The sign of $\text{ΔS}$ for freezing of water at $2°C$

(b)

Interpretation Introduction

To determine:

The sign of $\text{ΔS}$ for corrosion of iron metal.

(c)

Interpretation Introduction

To determine:

The sign of $\text{ΔS}$ for expansion of a gas to fill the available volume.

(d)

Interpretation Introduction

To determine:

The sign of $\text{ΔS}$ for separation of an unsaturated aqueous solution of potassium chloride into solid $\text{KCl}$ and liquid water.