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Prbset06

# Prbset06 - CHEMICAL ENGINEERING THERMODYNAMICS COURSE NO...

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CHEMICAL ENGINEERING THERMODYNAMICS COURSE NO.: CHEG5301 STUDENT: ___________________ COURSE: Thermodynamics INSTRUCTOR: Prof. Anderson SUBJECT: Problem Set 06 DUE: Wednesday, Oct. 1, 2008 1. A gaseous mixture contains 50 mol % A and 50 mol % B. To separate the mixture, it is proposed to cool it sufficiently to condense the mixture; the condensed liquid mixture is then sent to a distillation column operating at 1 bar. Initial cooling to 200K (without condensation) is to be achieved by Joule-Thomson throttling. If the temperature upstream of the throttling valve is 300K, what is the required upstream pressure? The volumetric properties of this gaseous mixture are given by V RT P T =+ 50 10 5 where V is the volume per mole of mixture in cm 3 /gmol. The ideal-gas specific heats, C P * , are 29.3 and 37.7 J/gmol-K for components A and B, respectively. 2. Superheated ethanol vapor is flowing through a well-insulated pipeline. At two positions along this line the temperatures and pressures were found to be 450 ° F & 500 psia and 440 ° F & 455 psia, respectively.

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Prbset06 - CHEMICAL ENGINEERING THERMODYNAMICS COURSE NO...

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