What type of deviation from Raoult's Law is observed in solutions with strong so
Practice Questions
Q1
What type of deviation from Raoult's Law is observed in solutions with strong solute-solvent interactions?
Positive deviation
Negative deviation
No deviation
Complete miscibility
Questions & Step-by-Step Solutions
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.
