Problemas
11A/B/C/E/F Solutions Quiz Which of the following describes a colligative property of solutions and correctly explains why it occurs? Vapor Pressure Lowering solute particles occupy part of the surface area so fewer solvent particles can evaporate. Vapor Pressure Elevation -solute particles increase the attractive forces betweent solvent particles, so more solvent particles evaporate. Boiling Point Depression -boiling point depends on vapor pressure, so when vapor pressure goes down boiling point does the same. Freezing Point Elevation -solute particles increase the attractive forces between solvent particles.
Roztwór
Manuela
veterano · Tutor durante 12 años
4.6
(173 Votos)
Respuesta
The correct options are A and C.
Explicación
## Step 1The problem is asking us to identify the correct description of a colligative property of solutions and explain why it occurs. Colligative properties are properties of solutions that depend on the number of solute particles in the solution, not on the nature of the solute particles.## Step 2Let's analyze each option:### Vapor Pressure LoweringThis is a correct description of a colligative property. When a solute is added to a solvent, the solute particles occupy part of the surface area of the solvent, reducing the number of solvent particles that can evaporate. This results in a lower vapor pressure.### Vapor Pressure ElevationThis is not a correct description of a colligative property. The addition of a solute does not increase the attractive forces between solvent particles, so it does not lead to more solvent particles evaporating.### Boiling Point DepressionThis is a correct description of a collig. The boiling point of a solution is determined by its vapor pressure. When the vapor pressure is lowered (as in the case of a solution), the boiling point also decreases.### Freezing Point ElevationThis is not a correct description of a colligative property. The addition of a solute does not increase the attractive forces between solvent particles, so it does not lead to an elevation of the freezing point.