MCQ
The pressure under which liquid and vapour can coexist at equilibrium is called the
- ALimiting vapour pressure
- BReal vapour pressure
- CNormal vapour pressure
- ✓Saturated vapour pressure
✓
Answer
Correct option: D.
Saturated vapour pressure
d
Ordinary evaporation is a surface phenomenon - some molecules have enough kinetic energy to escape. If the container is closed, then an equilibrium is reached where an equal number of molecules return to the surface.
Ordinary evaporation is a surface phenomenon - some molecules have enough kinetic energy to escape. If the container is closed, then an equilibrium is reached where an equal number of molecules return to the surface.
The pressure at which this equilibrium where the coexistence of liquid and vapour is achieved is called the saturated vapor pressure.
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