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Questions and Answers
What is vapor pressure?
What is vapor pressure?
- The pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system (correct)
- The pressure exerted by a liquid in an open container at room temperature
- The pressure exerted by a solid at its sublimation point
- The pressure exerted by a gas at its boiling point
What happens to vapor pressure when the surface area of the liquid is increased?
What happens to vapor pressure when the surface area of the liquid is increased?
- Vapor pressure remains unchanged
- Vapor pressure increases (correct)
- Vapor pressure becomes zero
- Vapor pressure decreases
How does temperature affect vapor pressure?
How does temperature affect vapor pressure?
- As temperature increases, vapor pressure increases (correct)
- Temperature has no effect on vapor pressure
- As temperature increases, vapor pressure decreases
- Vapor pressure increases with temperature up to a certain point, then decreases
Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system.
Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system.
The vapor pressure of a liquid is dependent on the surface area of the liquid.
The vapor pressure of a liquid is dependent on the surface area of the liquid.
Vapor pressure increases with decreasing temperature.
Vapor pressure increases with decreasing temperature.
Study Notes
Vapor Pressure
- Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system.
- Vapor pressure is dependent on the surface area of the liquid.
- When the surface area of the liquid is increased, vapor pressure also increases.
- Temperature affects vapor pressure, with higher temperatures resulting in higher vapor pressure (opposite of what was stated in the original text: "Vapor pressure increases with decreasing temperature" seems to be incorrect).
Note: The original text had an incorrect statement, which was corrected in the study notes.
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Test your knowledge of vapor pressure with questions about its definition, relationship with temperature, and the impact of surface area on vapor pressure.
