Chapter 16.3, Problem 16.2PSP

(a)

Interpretation Introduction

Interpretation:

The substance between $\text{C}\left(\text{g}\right)$ and $\text{C}\left(\text{s}\right)$ which has greater entropy at $25°\text{C}$ and $\text{1}\text{bar}$ has to be predicted.  The corresponding answer has to be validated with the standard data.

Concept Introduction:

The term entropy is used to represent the randomness in a system.  When a system moves from an ordered arrangement to a less order arrangement, then the entropy of the system increases.  The second law of thermodynamics state that “the entropy of the system either increases or remains the same.”

(b)

Interpretation Introduction

Interpretation:

The substance between $\text{Ca}\left(\text{s}\right)$ and $\text{Ar}\left(\text{g}\right)$ which has greater entropy at $25°\text{C}$ and $\text{1}\text{bar}$ has to be predicted.  The corresponding values has to be validated with the given data.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

The substance between $\text{KOH}\left(\text{s}\right)$ and $\text{KOH}\left(\text{aq}\right)$ which has greater entropy at $25°\text{C}$ and $\text{1}\text{bar}$ has to be predicted.  The corresponding values has to be validated with the given data.

Concept Introduction:

Refer to part (a).