Which of the following statements about the composition of the vapour over an ideal 1:1 molar mixture of benzene and toluene is correct? Assume that the temperature is constant at 250C.
(Given, vapour pressure data at 250C benzene = 12.8 kPa, toluene = 3.85 kPa)
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The vapour will contain a higher percentage of toluene
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The vapour will contain equal amounts of benzene and toluene
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Not enough information is given to make a prediction
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The vapour will contain a higher percentage of benzene
D.
The vapour will contain a higher percentage of benzene
A component having vapour pressure will have a higher percentage in the vapour phase. Benzene has vapour pressure 12.8 kPa which is greater than toluene 3.85pKa. Hence, the vapour will contain a higher percentage of benzene.
