A Solute Added to a Solvent Raises the Boiling Point

question 98

Multiple Choice

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

• A) the solute particles lower the solvent's vapor pressure, thus requiring a higher temperature to cause boiling.
• B) the temperature to cause boiling must be great enough to boil not only the solvent but also the solute.
• C) 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).
• D) the solute particles raise the solvent's vapor pressure, thus requiring a higher temperature to cause boiling.
• E) Two of the above are correct.

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Definitions:

Variable Cost

Costs that change in proportion to the level of activity or production volume of a company.

Materials Quantity Variance

The difference between the actual quantity of materials used in production and the expected quantity, multiplied by the standard cost per unit.

Actual Usage

The real amount of resources consumed or utilized in the production of goods or provision of services.

Standard Material

A benchmark or norm for the quality and type of materials used in the production of goods, aiding in cost control and budgeting.