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At 25°C the Vapor Pressures of Benzene and Toluene Are

Question 151

Multiple Choice

At 25°C the vapor pressures of benzene and toluene are 96.0 mm Hg and 30.5 mm Hg,respectively.When a 1:1 molar mixture of benzene and toluene is fractionally distilled,the first fraction will have a mole fraction of benzene that is closest to


A) 0.0.
B) 0.5.
C) 0.7.
D) 1.0.

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