液體甲與液體乙混合可形成理想溶液,且溶液上的蒸氣為理想氣體。若t°C時,測得該溶液的蒸壓為400mmHg,且蒸氣中甲的莫耳分率為0.20,溶液中甲的莫耳分率為0.25,則t°C時純甲的蒸氣壓為若干

問題詳情

7.液體甲與液體乙混合可形成理想溶液,且溶液上的蒸氣為理想氣體。若t°C時,測得該溶液的蒸壓為400mmHg,且蒸氣中甲的莫耳分率為0.20,溶液中甲的莫耳分率為0.25,則t°C時純甲的蒸氣壓為若干mmHg ?
(A)400
(B)320
(C)240
(D)160
(E)80 mmHg。

參考答案

答案：B
難度：計算中-1
書單：沒有書單，新增

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