A Solute Added to a Solvent Raises the Boiling Point

question 57

Multiple Choice

A solute added to a solvent raises the boiling point of the solution because:

• A)The temperature to cause boiling must be great enough to boil not only the solvent but also the solute.
• B)The solute particles lower the solvent's vapor pressure,thus requiring a higher temperature to cause boiling.
• C)The solute particles raise the solvent's vapor pressure,thus requiring a higher temperature to cause boiling.
• D)The solute increases the volume of the solution,and an increase in volume requires an increase in the temperature to reach the boiling point (derived from PV = nRT).
• E)Two of the above are correct.

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