An air stream is contaminated by 100 ppm (on a molar basis) of compound X. You wish to remove compound X from the air by condensation. 100 ppm (parts per million) = 0.01 mol% = 10-4 mol fraction. Please mark answers on graph when applicable

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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An air stream is contaminated by 100 ppm (on a molar basis) of compound X. You wish to remove compound X from the air by condensation. 100 ppm (parts per million) = 0.01 mol% = 10-4 mol fraction.

Please mark answers on graph when applicable

c) Consider the phase diagram of compound X shown above. Locate the point on the
graph that corresponds to 100 molar ppm of compound X in air at 300 K and 1 atm.

d) If the contaminated air is cooled at constant pressure (1 atm), at what temperature
will compound X start to condense?

e) To what temperature must you cool the air (at total pressure of 1 atm) to reduce the
contamination level to 10 ppm?

f) If the contaminated air is compressed at constant temperature (300 K), at what
pressure will compound X start to condense?

For parts c-f please mark your answers on the phase diagram below.
partial pressure of X (atm)
1
0.1
0.01
0.001
0,0001
0.00001
0.000001
150
175
200
Phase diagram for compound X.
225
250
temperature (K)
275
300
325
350
Transcribed Image Text:For parts c-f please mark your answers on the phase diagram below. partial pressure of X (atm) 1 0.1 0.01 0.001 0,0001 0.00001 0.000001 150 175 200 Phase diagram for compound X. 225 250 temperature (K) 275 300 325 350
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for question C, why is the dot at when the atm is 1 rather than 0.0001?

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