Chapter 17, Problem 17.66SP

Interpretation Introduction

Interpretation:

The entropy for the following reaction should be calculated.

$\text{2}{\text{Na(s)+Cl}}_{\text{2}}\text{(g)}\to \text{2}\text{NaCl}\text{(s)}$

Concept introduction:

• Entropy: Entropy of a system is a thermodynamic quantity which may be defined as a measure of disorder or randomness of the system.
• The formula for calculating entropy using standard molar entropies is as follows:

${\text{ΔS}}^{\text{0}}\text{=}\left({\text{Σn}}_{\text{p}}{\text{S}}^{\text{0}}{}_{\text{product}}\right)\text{-}\left({\text{Σn}}_{\text{p}}{\text{S}}^{\text{0}}{}_{\text{reactant}}\right)$

Interpretation Introduction

Interpretation:

The entropy for the following reaction should be calculated.

$\text{2}{\text{O}}_{\text{3}}\text{(g)}\to \text{3}{\text{O}}_{\text{2}}\text{(g)}$

Concept introduction:

• Entropy: Entropy of a system is a thermodynamic quantity which may be defined as a measure of disorder or randomness of the system.
• The formula for calculating entropy using standard molar entropies is as follows:

${\text{ΔS}}^{\text{0}}\text{=}\left({\text{Σn}}_{\text{p}}{\text{S}}^{\text{0}}{}_{\text{product}}\right)\text{-}\left({\text{Σn}}_{\text{p}}{\text{S}}^{\text{0}}{}_{\text{reactant}}\right)$

Interpretation Introduction

Interpretation:

The entropy for the following reaction should be calculated.

$\text{4}\text{Al(s)+3}{\text{O}}_{\text{2}}\text{(g)}\to \text{2}{\text{Al}}_{\text{2}}{\text{O}}_{\text{3}}\text{(s)}$

Concept introduction:

• Entropy: Entropy of a system is a thermodynamic quantity which may be defined as a measure of disorder or randomness of the system.
• The formula for calculating entropy using standard molar entropies is as follows;

${\text{ΔS}}^{\text{0}}\text{=}\left({\text{Σn}}_{\text{p}}{\text{S}}^{\text{0}}{}_{\text{product}}\right)\text{-}\left({\text{Σn}}_{\text{p}}{\text{S}}^{\text{0}}{}_{\text{reactant}}\right)$