Vapour Pressure does not depends on:
Correct answer: D. Surface area
- A. Temperature
- B. Size of molecules
- C. Intermolecular force
- D. Surface area
Explanation
Vapour pressure is a thermodynamic property of a liquid that measures the tendency of its molecules to escape into the gas phase. The magnitude of vapour pressure does not depend upon the amount of liquid in the container or the volume of container. It also does not depend on surface area of a liquid. The surface area of a liquid can affect the rate of evaporation, but it does not affect the vapour pressure.
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About Evaporation, Boiling Point and Vapour Pressure
Evaporation is the escape of higher-energy molecules from a liquid surface, while vapour pressure is the pressure exerted by vapour in equilibrium with that liquid. The topic distinguishes evaporation from boiling and relates both to temperature, intermolecular forces, surface area, atmospheric pressure and the boiling point.
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