At a Given Temperature, You Have a Mixture of Benzene

question 14

Multiple Choice

At a given temperature, you have a mixture of benzene (P_vap = 745 torr) and toluene (P_vap = 290 torr) . The mole fraction of benzene in the solution is 0.590. Assuming ideal behavior, calculate the mole fraction of toluene in the vapor above the solution.

• A) 0.778
• B) 0.641
• C) 0.355
• D) 0.213
• E) 0.590

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