SolutionHard
Question
What is the mole ratio of benzene (PB0 = 150 torr) and toluene (PT0 = 50 torr) in vapour phase if the given solution has a vapour pressure of 120 torr?
Options
A.7 : 1
B.7 : 3
C.8 : 1
D.7 : 8
Solution
P = PBoXB + PTo XT
120 = 150 (XB) + 50 (1 - XB)
100 XB = 70
XB = 0.7
YB =
= 0.075 
YT = 1 - 0.875 = 0.125
120 = 150 (XB) + 50 (1 - XB)
100 XB = 70
XB = 0.7
YB =
= 0.075 YT = 1 - 0.875 = 0.125 Create a free account to view solution
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