問題詳情
9. 下列敘述，何者正確？
(A)任何物質溶於水所得水溶液的沸點必較純水高，凝固點必較純水低
(B)任何壓力下，糖水的沸點必高於 100
(C)莫耳分率相等的甘油及葡萄糖水溶液，1 a 下兩者凝固點相等
(D)水的凝固點下降常數 值隨溶質種類而變。°C tmKf
(A)任何物質溶於水所得水溶液的沸點必較純水高，凝固點必較純水低
(B)任何壓力下，糖水的沸點必高於 100
(C)莫耳分率相等的甘油及葡萄糖水溶液，1 a 下兩者凝固點相等
(D)水的凝固點下降常數 值隨溶質種類而變。°C tmKf
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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