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Find the lowest temperature of vaporization and the highest temperature when there is liquid left over.
A liquid mixture of 20 mol% benzene, 50 mol% toluene and 30 mol% xylene is to be partially vaporized at 1 atm pressure. You are asked to calculate the range of temperatures which could be used for this process.
Antoine constants: pressure [=] mmHg Temperature [=] C
at 1 atm (degreesC)
A
B
C
Benzene
6.89
1203
220
80.1
Toluene
6.96
1347
110.6
Xylene
7.00
1467
214
140
1. What is the lowest temperature at which vaporization could occur? ___________ degrees C. (provide answer to within +/- 5 °C)
2. What is the highest temperature that could be used and liquid still be present? __________ degrees C. (provide answer to within +/- 5 °C)
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