What is the effect of a non-volatile solute on the boiling point of a solvent?
Correct Answer: The boiling point of the solvent increases.
- Step 1: Understand what a solvent is. A solvent is a substance, usually a liquid, that dissolves a solute.
- Step 2: Know what a non-volatile solute is. A non-volatile solute is a substance that does not easily evaporate at normal temperatures.
- Step 3: Learn about boiling point. The boiling point is the temperature at which a liquid turns into vapor.
- Step 4: Recognize that adding a non-volatile solute to a solvent changes its properties.
- Step 5: Understand that when a non-volatile solute is added, it makes it harder for the solvent molecules to escape into the vapor phase.
- Step 6: Realize that because of this, the temperature must be increased to make the solvent boil.
- Step 7: Conclude that the boiling point of the solvent is raised when a non-volatile solute is added, which is called boiling point elevation.
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