The following diagram shows a close-up view of the vapor pressure curves for a p

Question

The following diagram shows a close-up view of the vapor pressure curves for a pure solvent and a solution containing a nonvolatile solute dissolved in this solvent. Which curve is the solvent and what happens to the boiling point when the solute is dissolved in the solvent? A) Curve (a) is the solvent and the boiling point decreases. B) Curve (a) is the solvent and the boiling point increases (a) (b Curve (b) is the solvent and the boiling point decreases. rve (b) is the solvent and the boiling point increases Pressure (mm Hg) Temperature oC)

Explanation / Answer

The theory says that when you mix two substances: by definition its boiling point increases, that would be the curve (b) (the one with the two substances mixed)

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