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Exploring Vapor Pressure

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Questions and Answers

Which of the following explains why the vapor pressure of a solution is higher than that of the pure solvent?

The solute particles increase the vapor pressure of the solution. (correct)

The solute particles decrease the freezing point of the solution.

The solute particles increase the boiling point of the solution.

The presence of solute particles lowers the vapor pressure of the solution.

Which statement best describes the effect of solute particles on the vapor pressure of a solution?

Solute particles have no effect on the vapor pressure of a solution.

Solute particles increase the vapor pressure of a solution. (correct)

Solute particles decrease the vapor pressure of a solution.

Solute particles only affect the boiling point of a solution.

Why is the vapor pressure of a solution higher than that of the pure solvent?

The presence of solute particles in a solution increases the number of particles at the surface, leading to more collisions and increased vapor pressure.

Which of the following is NOT a reason why the vapor pressure of a solution is higher than that of the pure solvent?

The presence of solute particles increases the boiling point of the solution. Signup and view all the answers

What is the effect of solute particles on the vapor pressure of a solution?

Solute particles in a solution disrupt the intermolecular forces between the solvent molecules, making it easier for them to escape and increasing the vapor pressure. Signup and view all the answers

How does the presence of solute particles in a solution affect the vapor pressure?

The presence of solute particles decreases the effective concentration of the solvent at the surface, resulting in a higher vapor pressure compared to the pure solvent. Signup and view all the answers