HW3solutions

HW3solutions - Chapter 5 Single Phase Systems Liquid Solid...

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PGE 213 Fall 2011 Homework 3 Solutions Problem 2-19 Determine the compositions and quantities of gas and liquid when 1 lb mole of a mixture of 30 mole percent methane and 70 mole percent ethane is brought to equilibrium at 0 F and 500 psia. 1) On page 73 of the text, find figure 2-24. Place a point at the given composition (30% methane, 0 F) on the 500psia phase envelope. 2) Draw a horizontal tie line through this point and terminating on the bubble point and dew point lines on either side. 3) Read the composition off the liquid and vapor lines: Component Composition of liquid (mole %) Composition of Gas (mole %) CH 4 19% 50% C 2 H 4 81% 50% Calculate the fractions of gas and liquid from length of the tie-line: Since we have a basis of 1 lb of gas, these fractions also represent the quantity of gas and liquid, respectively. Follow example 2-7 in your book for further explanation.

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PGE 213 Fall 2011 Homework 3 Solutions Problem 2-22 The graphs above are constructed by taking a vertical line at the given
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This note was uploaded on 11/25/2011 for the course MATH 325K taught by Professor Shirley during the Spring '11 term at University of Texas.

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HW3solutions - Chapter 5 Single Phase Systems Liquid Solid...

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