Thermodynamics: An Engineering Approach 8th Edition

Published by McGraw-Hill Education
ISBN 10: 0-07339-817-9
ISBN 13: 978-0-07339-817-4

Chapter 3 - Properties of Pure Substances - Problems - Page 159: 3-127

Answer

Table is on the image

Work Step by Step

a) From table A-6 $P=0.3MPa$ $\upsilon=0.79645\frac{m^3}{kg}$ As $u\gt u_{g}$ is a superheated vapor b) From table A-5 $T=133.52^{\circ}C$ As $561.11\frac{kJ}{kg}\lt u\lt 2543.2\frac{kJ}{kg}$ is a saturated mixture. $x=\frac{1560\frac{kJ}{kg}-561.11\frac{kJ}{kg}}{1982.1\frac{kJ}{kg}}=0.504$ $\upsilon=0.001073\frac{m^3}{kg}+0.504*(0.60582\frac{m^3}{kg}-0.001073\frac{m^3}{kg})=0.3059\frac{m^3}{kg}$ c)Insufficient information d) From table A-4 $u=761.92\frac{kJ}{kg}$ $\upsilon=0.001127\frac{m^3}{kg}$ As $T\lt T_{sat}$ is a compressed liquid
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