Consider a closed vessel of fixed volume containing equal masses of water, ethanol, and toluene at 70C.

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Consider a closed vessel of fixed volume containing equal masses of water, ethanol, and toluene at 70°C. Three phases (two liquid and one vapor) are present.
(a) How many variables, in addition to the mass of each component and the temperature, must be specified to fully determine the intensive state of the system?
(b) How many variables, in addition to the mass of each component and the temperature, must be specified to fully determine the extensive state of the system?
(c) The temperature of the system is increased to 72°C. What, if any, intensive or extensive coordinates of the system remain unchanged?

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Introduction To Chemical Engineering Thermodynamics

ISBN: 9781259696527

8th Edition

Authors: J.M. Smith, Hendrick Van Ness, Michael Abbott, Mark Swihart

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