Spring06Final - 1 PGE 312 - SPRING 2006 Physical and...

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1 PGE 312 - SPRING 2006 Physical and Chemical Behavior of Petroleum Fluids I Final Examination, 3 Hours It will be in your best interest to attempt all the questions. Please budget your time accordingly. Problem 1 (20 points) A binary gas mixture containing methane and ethane has a specific gravity of 0.75 relative to air. Calculate the composition of the gas in mole fractions. Atomic weight of carbon = 12. Atomic weight of hydrogen = 1.
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2 Problem 2 (20 points) Pure liquid n-butane is confined in a PVT cell at a temperature of 200 F and a pressure ˚ of 400 psia. The liquid is then flashed at a constant temperature to a pressure of 100 psia. The vapor pressure data for n-butane are as follows: Temperature ( F) ˚ Vapor Pressure (psia) 50 22 100 50 150 102 200 200 250 320 300 500 306 (T c ) 551 (P c ) a. Determine the mole % of liquid in the final state. b. Sketch the Pressure – Temperature diagram for the process in going from the initial state to the final state of the butane. Please mark the known pressures and temperatures on your sketch.
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This test prep was uploaded on 04/06/2008 for the course PGE 312 taught by Professor Peters during the Spring '08 term at University of Texas at Austin.

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Spring06Final - 1 PGE 312 - SPRING 2006 Physical and...

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