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Engineering, 07.12.2019 05:31, maybe67
Vapor-liquid equilibrium data for the binary system isooctane-perfluoroheptane at 303, 323, and 343 k are available (see excel workbook). the vapor phase in equilibrium with the liquid may be considered an ideal-gas mixture. specific volumes of liquids are negligible compared to vapor specific volumes. the enthalpies of vaporization of pure isooctane and perfluoroheptane at 323 k are 34.33 and 35.31 kj/mol, respectively.
a) a saturated liquid stream containing 50 mole% isooctane is flowing in a pipeline at 323 k. what is the minimum isothermal, isobaric work required to separate this stream into two liquid fractions that contain 90 and 5 mole% isooctane, respectively? diagram your proposed process scheme.
b) a batch vessel at 323 k contains 100 moles of liquid with 50 mole% isooctane. devise a scheme to boil this liquid in such a manner that the pressure remains constant at the original value; the temperature is also to remain constant at 323 k. calculate the heat interaction for the process ending with only vapor in the vessel.
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Vapor-liquid equilibrium data for the binary system isooctane-perfluoroheptane at 303, 323, and 343...
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