Com base nos dados da tabela de vapor, determine a fugacidade
(f) para a água líquida a
160^{\circ} \mathrm{C} e 15 Mpa .
Dados:
\mathrm{MM}_{\mathrm{H} 2 \mathrm{O}}=0,018 \mathrm{~kg} / \mathrm{mol} e
\mathrm{R}=8,314 \mathrm{~m}^{3} . \mathrm{Pa} /(\mathrm{mol} . \mathrm{K})
\begin{aligned} g^{\text {sat }}-g^{0} & =R \cdot T \cdot \ln \left(\frac{f_{i}^{\text {sat }}}{P_{\text {baixa }}}\right) \\\ \ln \left(\frac{f_{i}^{l}}{f_{i}^{\text {sat }}}\right) & =\frac{v_{i}^{l}}{R \cdot T}\left(P-P_{i}^{\text {sat }}\right) \end{aligned}
Tabela 01:Água Líquida Sub-Resfriada \М⿳⿵人一由八mm
| T |
\hat{v} |
\hat{u} |
\hat{h} |
\hat{s} |
|
{ }^{\circ} \mathrm{C} |
\mathrm{m}^{3} / \mathrm{kg} |
kJ/kg |
kJ/kg |
kJ/kg K |
| 0 |
. 0009928 |
0.15 |
15.04 |
0.0004 |
| 20 |
. 0009950 |
83.05 |
97.97 |
0.2934 |
| 40 |
. 0010013 |
165.73 |
180.75 |
0.5665 |
| 60 |
. 0010105 |
248.49 |
263.65 |
0.8231 |
| 80 |
. 0010222 |
331.46 |
346.79 |
1.0655 |
| 100 |
. 0010361 |
414.72 |
430.26 |
1.2954 |
| 120 |
. 0010522 |
498.39 |
514.17 |
1.5144 |
| 140 |
. 0010707 |
582.64 |
598.70 |
1.7241 |
| 160 |
. 0010918 |
667.69 |
684.07 |
1.9259 |
| 180 |
. 0011159 |
753.74 |
770.48 |
2.1209 |
| 200 |
. 0011433 |
841.04 |
858.18 |
2.3103 |
| 220 |
. 0011748 |
929.89 |
947.52 |
2.4952 |
| 240 |
. 0012114 |
1020.82 |
1038.99 |
2.6770 |
| 260 |
. 0012550 |
1114.59 |
1133.41 |
2.8575 |
| 280 |
. 0013084 |
1212.47 |
1232.09 |
3.0392 |
| 300 |
. 0013770 |
1316.58 |
1337.23 |
3.2259 |
| 320 |
. 0014724 |
1431.05 |
1453.13 |
3.4246 |
| 340 |
. 0016311 |
1567.42 |
1591.88 |
3.6545 |