1. At 90 °C, the vapour pressure of methylbenzene is 53.3 kPa and that of 1,2-dimethylbenzene is 20.0 kPa.
A. What is the composition of a liquid mixture that boils at 90 °C when the pressure is 0.50 atm?
B. What is the composition of the vapour produced?
2. At 90°C, the vapour pressure of 1,2-dimethylbenzene is 20 kPa and that of 1,3-dimethylbenzene is 18 kPa.
A. What is the composition of a liquid mixture that boils at 90°C when the pressure is 19 kPa?
B. What is the composition of the vapour produced?
Answers: 2
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