Chapter 19.3, Problem 19.3.1PE

(a)

Interpretation Introduction

To determine: If the entropy of the given reaction increases or decreases.

${\text{CO}}_2\left(s\right)\to {\text{CO}}_2\left(g\right)$

(b)

Interpretation Introduction

To determine: If the entropy of the given reaction increases or decreases.

$\text{CaO}\left(s\right)+{\text{CO}}_2\left(g\right)\to {\text{CaCO}}_3\left(s\right)$

(c)

Interpretation Introduction

To determine: If the entropy of the given reaction increases or decreases.

$\text{HCl}\left(g\right)+{\text{NH}}_3\left(g\right)\to {\text{NH}}_4\text{Cl}\left(s\right)$

(d)

Interpretation Introduction

To determine: If the entropy of the given reaction increases or decreases.

${\text{2SO}}_2\left(g\right)+{\text{O}}_2\left(g\right)\to 2{\text{SO}}_3\left(g\right)$