All air is removed (vacuumed) from a 2 liter closed container that contains 200 ml of Liquid A and 600 ml of Liquid B at a temperature of 20C. At this temperature Liquid A has a density of 0.825 g/ml and vapor pressure of 25 kPa. Liquid B has a density of 0.750 g/ml and vapor pressure of 15 kPa. What is the mol fraction of vapor from Liquid A in the head space above the liquid surface? A) .25 B) .38 C) .63 D) .75

Elements Of Electromagnetics
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Thermodynamics T-11
All air is removed (vacuumed) from a 2 liter closed container
that contains 200 ml of Liquid A and 600 ml of Liquid B at a
temperature of 20C. At this temperature Liquid A has a
density of 0.825 g/ml and vapor pressure of 25 kPa. Liquid B
has a density of 0.750 g/ml and vapor pressure of 15 kPa.
What is the mol fraction of vapor from Liquid A in the head
space above the liquid surface?
A) .25
B) .38
C) .63
D) .75
Transcribed Image Text:Thermodynamics T-11 All air is removed (vacuumed) from a 2 liter closed container that contains 200 ml of Liquid A and 600 ml of Liquid B at a temperature of 20C. At this temperature Liquid A has a density of 0.825 g/ml and vapor pressure of 25 kPa. Liquid B has a density of 0.750 g/ml and vapor pressure of 15 kPa. What is the mol fraction of vapor from Liquid A in the head space above the liquid surface? A) .25 B) .38 C) .63 D) .75
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