Chapter 11, Problem 11.103CP

(a)

Interpretation Introduction

To determine:

The normal boiling point trichlorofluoromethane in ⁰C

(b)

Interpretation Introduction

To determine:

  $\Delta {\text{S}}_{\text{vap}}$ for trichlorofluoromethane

Formula used:

We know that below formula is entropy of fusion
${\text{ΔS}}_{\text{vap}}\text{=}\frac{{\text{ΔH}}_{\text{vap}}}{\text{T}}$

Calculation:

  $\Delta {\text{H}}_{\text{vap}}\text{ = 24}\text{.77}\times {\text{10}}^3\text{ J/mol}$

T = $\text{29}{\text{.83 }}^0\text{C = 303}\text{.03K }$

Putting the above values in to calculate the $\Delta {\text{S}}_{\text{vap}}$ for trichlorofluoromethane
$\begin{array}{l}{\text{ΔS}}_{\text{vap}}\text{=}\frac{{\text{ΔH}}_{\text{vap}}}{\text{T}}\\ {\text{ΔS}}_{\text{vap}}\text{= }\frac{\text{24}\text{.77}\times {\text{10}}^3\text{ J/mol}}{303.03\text{K}}\\ \begin{array}{||}\hline {\text{ΔS}}_{\text{vap}}\text{= }81.74\text{ J/mol}\cdot \text{K}\\ \hline\end{array}\end{array}$

Thus, the $\Delta {\text{S}}_{\text{vap}}$ for trichlorofluoromethane $\begin{array}{||}\hline 81.74\text{ J/mol}\cdot \text{K}\\ \hline\end{array}$

(a)

Interpretation Introduction

To determine:

The normal boiling point trichlorofluoromethane in ⁰C

(b)

Interpretation Introduction

To determine:

  $\Delta {\text{S}}_{\text{vap}}$ for trichlorofluoromethane

Formula used:

We know that below formula is entropy of fusion
${\text{ΔS}}_{\text{vap}}\text{=}\frac{{\text{ΔH}}_{\text{vap}}}{\text{T}}$

Calculation:

  $\Delta {\text{H}}_{\text{vap}}\text{ = 24}\text{.77}\times {\text{10}}^3\text{ J/mol}$

T = $\text{29}{\text{.83 }}^0\text{C = 303}\text{.03K }$

Putting the above values in to calculate the $\Delta {\text{S}}_{\text{vap}}$ for trichlorofluoromethane
$\begin{array}{l}{\text{ΔS}}_{\text{vap}}\text{=}\frac{{\text{ΔH}}_{\text{vap}}}{\text{T}}\\ {\text{ΔS}}_{\text{vap}}\text{= }\frac{\text{24}\text{.77}\times {\text{10}}^3\text{ J/mol}}{303.03\text{K}}\\ \begin{array}{||}\hline {\text{ΔS}}_{\text{vap}}\text{= }81.74\text{ J/mol}\cdot \text{K}\\ \hline\end{array}\end{array}$

Thus, the $\Delta {\text{S}}_{\text{vap}}$ for trichlorofluoromethane $\begin{array}{||}\hline 81.74\text{ J/mol}\cdot \text{K}\\ \hline\end{array}$