Chapter 18.4, Problem 1PE

(a)

Interpretation Introduction

Interpretation:

Following the reaction the standard entropy value has to be calculate at $25°C$

Concept Introduction:

Entropy: It’s is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Symbol for entropy is $\Delta \text{S}$, unit: $\text{J/Kmol}$

Entropy was also defined as the randomness or disorder of the system. Since its thermodynamic state function it can be measured at instant, rather it was calculated as the difference in entropy of the two state, which was denoted by the symbol $\Delta \text{S}$.

The standard entropy change in a reaction is the difference in entropy of the products and reactants. ${\text{(ΔS}}^{\text{°}}{}_{\text{reaction}}\text{)}$ can be calculated by the following equation.

${\text{(ΔS}}^{\text{°}}{}_{\text{reaction}}\text{) = }\Delta {\text{S}}^{\text{°}}{}_{\text{Products}}-\Delta {\text{S}}^{\text{°}}{}_{\text{reactants}}$

Where

  $\Delta {\text{S}}^{\text{°}}{}_{\text{reactants}}$ is the standard entropy change of the reactants

  $\Delta {\text{S}}^{\text{°}}{}_{\text{Products}}$ is the standard entropy change of the products

(b)

Interpretation Introduction

Interpretation:

Following the reaction the standard entropy value has to be calculate at $25°C$

Concept Introduction:

Entropy: It’s is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Symbol for entropy is $\Delta \text{S}$, unit: $\text{J/Kmol}$

Entropy was also defined as the randomness or disorder of the system. Since its thermodynamic state function it can be measured at instant, rather it was calculated as the difference in entropy of the two state, which was denoted by the symbol $\Delta \text{S}$.

The standard entropy change in a reaction is the difference in entropy of the products and reactants. ${\text{(ΔS}}^{\text{°}}{}_{\text{reaction}}\text{)}$ can be calculated by the following equation.

${\text{(ΔS}}^{\text{°}}{}_{\text{reaction}}\text{) = }\Delta {\text{S}}^{\text{°}}{}_{\text{Products}}-\Delta {\text{S}}^{\text{°}}{}_{\text{reactants}}$

Where

  $\Delta {\text{S}}^{\text{°}}{}_{\text{reactants}}$ is the standard entropy change of the reactants

  $\Delta {\text{S}}^{\text{°}}{}_{\text{Products}}$ is the standard entropy change of the products

(c)

Interpretation Introduction

Interpretation:

Following the reaction the standard entropy value has to be calculate at $25°C$

Concept Introduction:

Entropy: It’s is the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Symbol for entropy is $\Delta \text{S}$, unit: $\text{J/Kmol}$

Entropy was also defined as the randomness or disorder of the system. Since its thermodynamic state function it can be measured at instant, rather it was calculated as the difference in entropy of the two state, which was denoted by the symbol $\Delta \text{S}$.

The standard entropy change in a reaction is the difference in entropy of the products and reactants. ${\text{(ΔS}}^{\text{°}}{}_{\text{reaction}}\text{)}$ can be calculated by the following equation.

${\text{(ΔS}}^{\text{°}}{}_{\text{reaction}}\text{) = }\Delta {\text{S}}^{\text{°}}{}_{\text{Products}}-\Delta {\text{S}}^{\text{°}}{}_{\text{reactants}}$

Where

  $\Delta {\text{S}}^{\text{°}}{}_{\text{reactants}}$ is the standard entropy change of the reactants

  $\Delta {\text{S}}^{\text{°}}{}_{\text{Products}}$ is the standard entropy change of the products