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[求助] 理想溶液问题

将甲苯A、苯B两种溶液配成甲苯摩尔分数为0.4588的理想溶液,置于一带活塞的容器中,在90℃时纯甲苯、纯苯的饱和蒸汽压分别为54kPa和136kPa,问:
1. 压力降到多少时开始产生气相?此时气相组成是多少?
2. 压力再降到多少时液相开始消失?此时最后一小滴液体的组成是?
谢谢!

[ Last edited by sddtc888 on 2014-3-10 at 21:24 ]
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