What type of deviation from Raoult's Law is observed in solutions with strong so

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Question: What type of deviation from Raoult\'s Law is observed in solutions with strong solute-solvent interactions?

Options:

Correct Answer: Negative deviation

Solution:

Negative deviation from Raoult\'s Law occurs when strong solute-solvent interactions lower the vapor pressure more than expected.

What type of deviation from Raoult's Law is observed in solutions with strong solute-solvent interactions?

What type of deviation from Raoult's Law is observed in solutions with strong solute-solvent interactions?

Step 1: Understand Raoult's Law, which states that the vapor pressure of a solution is related to the vapor pressures of its components and their mole fractions.
Step 2: Recognize that in a solution, the solute and solvent can interact with each other.
Step 3: Identify that strong solute-solvent interactions mean that the solute molecules attract the solvent molecules strongly.
Step 4: Realize that these strong interactions can prevent some solvent molecules from escaping into the vapor phase.
Step 5: Conclude that because more solvent molecules are held back, the vapor pressure of the solution is lower than what Raoult's Law predicts.
Step 6: This situation is called a negative deviation from Raoult's Law.

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