Twice as Much Pentane (C₅H₁₂) Is Mixed with Hexane (C₆H₁₄)

question 156

Multiple Choice

Twice as much pentane (C₅H₁₂) is mixed with hexane (C₆H₁₄) by mass. Calculate the vapour pressure of the resulting solution. The vapour pressures of pure pentane and hexane are 425 Torr and 151 Torr, respectively. Assume ideal behaviour.

• A) 386 Torr
• B) 300 Torr
• C) 311 Torr
• D) 253 Torr
• E) 344 Torr

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