Chapter 20, Problem 20.26P

(a)

Interpretation Introduction

Interpretation:

The increasing standard molar entropy $\Delta S^o$ for the given each group should be arranged.

Concept introduction:

Entropy is a thermodynamic quantity, which is the measure of randomness in a system.  The term entropy is useful in explaining the spontaneity of a process. For all spontaneous process in an isolated system there will be an increase in entropy. Standard Entropy is represented by the letter ‘$S^o$’.  It is a state function.  The change in entropy gives information about the magnitude and direction of a process.  The entropy changes associated with a phase transition reaction can be found by the following equation.

  ${\text{ΔS}}^{\text{o}}\text{}\text{=}\text{}\text{}\frac{{\text{ΔΗ}}^{\text{o}}}{\text{Τ}}$

Where,

  $\Delta {{\rm H}}^{\text{o}}$ is the change in standard enthalpy of the system

  $\text{T}$ is the absolute value of the temperature

  $\Delta {\text{S}}^{\text{o}}$ is the change in standard entropy in the system

(b)

Interpretation Introduction

The increasing standard molar entropy $\Delta S^o$ for the given each group should be arranged.

Concept introduction:

Entropy is a thermodynamic quantity, which is the measure of randomness in a system.  The term entropy is useful in explaining the spontaneity of a process. For all spontaneous process in an isolated system there will be an increase in entropy. Standard Entropy is represented by the letter ‘$S^o$’.  It is a state function.  The change in entropy gives information about the magnitude and direction of a process.  The entropy changes associated with a phase transition reaction can be found by the following equation.

  ${\text{ΔS}}^{\text{o}}\text{}\text{=}\text{}\text{}\frac{{\text{ΔΗ}}^{\text{o}}}{\text{Τ}}$

Where,

  $\Delta {{\rm H}}^{\text{o}}$ is the change in standard enthalpy of the system

  $\text{T}$ is the absolute value of the temperature

  $\Delta {\text{S}}^{\text{o}}$ is the change in standard entropy in the system

(c)

Interpretation Introduction

Interpretation:

The increasing standard molar entropy $\Delta S^o$ for the given each group should be arranged.

Concept introduction:

Entropy is a thermodynamic quantity, which is the measure of randomness in a system.  The term entropy is useful in explaining the spontaneity of a process. For all spontaneous process in an isolated system there will be an increase in entropy. Standard Entropy is represented by the letter ‘$S^o$’.  It is a state function.  The change in entropy gives information about the magnitude and direction of a process.  The entropy changes associated with a phase transition reaction can be found by the following equation.

  ${\text{ΔS}}^{\text{o}}\text{}\text{=}\text{}\text{}\frac{{\text{ΔΗ}}^{\text{o}}}{\text{Τ}}$

Where,

  $\Delta {{\rm H}}^{\text{o}}$ is the change in standard enthalpy of the system

  $\text{T}$ is the absolute value of the temperature

  $\Delta {\text{S}}^{\text{o}}$ is the change in standard entropy in the system