What is the effect of increasing temperature on the vapor pressure of a solvent according to Raoult's Law?
Practice Questions
1 question
Q1
What is the effect of increasing temperature on the vapor pressure of a solvent according to Raoult's Law?
It decreases the vapor pressure.
It increases the vapor pressure.
It has no effect.
It depends on the solute.
Increasing temperature generally increases the vapor pressure of a solvent, as more molecules have enough energy to escape into the vapor phase.
Questions & Step-by-step Solutions
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Q
Q: What is the effect of increasing temperature on the vapor pressure of a solvent according to Raoult's Law?
Solution: Increasing temperature generally increases the vapor pressure of a solvent, as more molecules have enough energy to escape into the vapor phase.
Steps: 5
Step 1: Understand what vapor pressure is. Vapor pressure is the pressure exerted by the vapor of a liquid when it is in equilibrium with its liquid phase.
Step 2: Know that temperature affects the energy of molecules. As temperature increases, the energy of the molecules in the solvent also increases.
Step 3: Realize that higher energy means more molecules can escape. When molecules have enough energy, they can break free from the liquid and enter the vapor phase.
Step 4: Connect this to Raoult's Law. Raoult's Law states that the vapor pressure of a solvent is directly related to its temperature.
Step 5: Conclude that as temperature increases, the vapor pressure of the solvent also increases because more molecules can escape into the vapor.
