Chapter 2.6, Problem 29P

Interpretation Introduction

Interpretation:

Fill in all of the empty cells.

Concept Introduction:

Write the expression to obtain the specific enthalpy $\left(\widehat{H}\right)$.

$\widehat{H}=\widehat{U}+P\widehat{V}$

Here, specific internal energy is $\widehat{U}$, pressure is $P$, and specific volume is $\widehat{V}$.

Write the expression to obtain the specific volume $\left(\widehat{V}\right)$.

$\begin{array}{l}\widehat{H}=\widehat{U}+P\widehat{V}\\ \widehat{V}=\frac{\widehat{H}-\widehat{U}}{P}\end{array}$

Write the expression to obtain the constant pressure $\left(C_P\right)$.

$\begin{array}{l}d\widehat{H}={\displaystyle \underset{T_1}{\overset{T_2}{\int }}{C}_{P}dT}\\ {\widehat{H}}_2-{\widehat{H}}_1=C_P\left(T_2-T_1\right)\end{array}$

Here, net specific enthalpy is $d\widehat{H}$, initial specific enthalpy or specific enthalpy in row C is ${\widehat{H}}_1$, final specific enthalpy or specific enthalpy in row E is ${\widehat{H}}_2$, initial temperature or temperature in row C is $T_1$ and final temperature or temperature in row E is $T_2$.

Write the expression to obtain the molar volume $\left(\underset{\_}{V}\right)$.

$\underset{\_}{V}=\frac{RT}{P}$

Here, gas constant is $R$.

Write the expression to obtain the specific volume $\left(\widehat{V}\right)$.

$\widehat{V}=\frac{\underset{\_}{V}}{MW}$

Here, molecular weight is $MW$.