Explanation Write the expression for the specific volume of the liquid vapor mixture. v = v f + x ( v g − v f ) (I) Here, the specific volume of vapor mixture is v , the quality of steam is x , the specific volume of saturated vapor is v g and the specific volume of saturated liquid is v f . Write the quality of steam from Equation (I). x = ( v − v f ) ( v g − v f ) Write the expression for the specific internal energy of vapor mixture. u = u f + x ( u g − u f ) (II) Here, the specific internal energy of vapor mixture is u , the quality of steam is x , the specific internal energy of saturated vapor is u g and the specific internal energy of saturated liquid is u f . Substitute ( v − v f ) ( v g − v f ) for x in Equation (II)

Fundamentals of Engineering Thermodynamics

8th Edition

ISBN: 9781118412930

Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey

Publisher: WILEY

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Chapter 3.14, Problem 14CU

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The specific internal energy using temperature and specific volume of the two phase liquid-vapor mixture.

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Fundamentals of Engineering Thermodynamics

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