What does Raoult's Law state about the vapor pressure of a solution?

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Question: What does Raoult\'s Law state about the vapor pressure of a solution?

Options:

Correct Answer: It is directly proportional to the mole fraction of the solvent.

Solution:

Raoult\'s Law states that the vapor pressure of a solvent in a solution is directly proportional to the mole fraction of the solvent.

What does Raoult's Law state about the vapor pressure of a solution?

What does Raoult's Law state about the vapor pressure of a solution?

Correct Answer: Raoult's Law states that the vapor pressure of a solvent in a solution is directly proportional to the mole fraction of the solvent.

Step 1: Understand what vapor pressure is. It is the pressure exerted by the vapor of a liquid when it is in equilibrium with its liquid phase.
Step 2: Know that a solution is made up of a solvent (the main liquid) and a solute (the substance dissolved in the solvent).
Step 3: Identify the mole fraction of the solvent. This is the ratio of the number of moles of the solvent to the total number of moles of all components in the solution.
Step 4: Recognize that Raoult's Law states that the vapor pressure of the solvent in the solution is proportional to its mole fraction.
Step 5: This means that if you have more solvent (higher mole fraction), the vapor pressure will be higher, and if you have less solvent (lower mole fraction), the vapor pressure will be lower.

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