Vapor pressure is measured by calculating difference in liquid pressure and _.
Correct answer: C. Atmospheric pressure
- A. Mercury pressure
- B. Glass pressure
- C. Atmospheric pressure
- D. Container pressure
Explanation
Vapor pressure is measured by taking the difference in liquid pressure and atmospheric pressure.Note: Total pressure (also called liquid pressure) is the sum of the atmospheric pressure and vapor 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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