The vapor pressures of benzene and toluene have the following values in the temperature range between their boiling points at 1 bar; T. 0C 79.4 88 94 100 110 P*(C6H6), bar 1.00 1.285 1.526 1.801   P*(C-H8), bar   0.508 0.616 0.742 1.00 If a solution containing 0.5 mole fraction benzene and 0.5 mole fraction toluene is heated at what temperature will the first bubble of vapor appears and what will be its composition ?

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Q: vapour pressure

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A: Option D is correct. For a detailed solution, please see the attached files.

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