At a Given Temperature, the Vapor Pressure of Heptane Is

question 22

Multiple Choice

At a given temperature, the vapor pressure of heptane is 92.0 torr and the vapor pressure of octane is 31.2 torr. Assuming ideal behavior, what is the vapor pressure of a solution that contains three times as many moles of octane as heptane?

• A) 87.3 torr
• B) 52.4 torr
• C) 76.8 torr
• D) 46.4 torr
• E) none of these

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