ChE 443 HW2

# ChE 443 HW2 - Homework 2/Practice Exam 1 CHE 443 Spring...

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Homework 2/Practice Exam 1 CHE 443, Spring 2014 1. The figure below shows a well that is 12,000 ft deep. The bottom H=2000-ft portion is filled with an incompressible oil of specific gravity s=0.75, above with there is an h=10,000-ft layer of methane (CH 4 ; C=12, H=1) at 100 °F, which behaves as an ideal isothermal gas whose density is not constant. The gas and oil are static. The density of water is 62.3 lb m /ft3. a) If the pressure gauge at the top of the well registers p A =1,000 psig, compute the absolute pressure p B (psia) at the oil/methane interface. Work in terms of symbols before substituting numbers. b) Also compute (p C -p B ), the additional pressure (psi) in going from the interface B to the bottom

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