問題詳情

19. The following diagram shows a close-up view of the vapor pressure curves for a puresolvent and a solution containing a nonvolatile solute dissolved in this solvent.


 Which curve is the solvent and what happens to the vapor pressure when the solute isdissolved in the solvent?
(A) Curve (a) is the solvent and the vapor pressure decreases.
(B) Curve (a) is the solvent and the vapor pressure increases.
(C) Curve (b) is the solvent and the vapor pressure decreases.
(D) Curve (b) is the solvent and the vapor pressure increases.

參考答案

答案：A
難度：計算中-1
書單：沒有書單，新增