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Do any water molecules become gas particles when the vapor pressure is lower than atmospheric pressure? Why or why not?

Sagot :

Answer:

Yes, water molecules becomes gas particles when the vapor pressure is lower than the external atmospheric temperature.

Explanation:

Vapor pressure is defined as the pressure of the vapor that lies above its surface. In other words, it is the pressure of the vapor which results from the evaporation of a liquid which is above a liquid in a closed or open container.

The liquid starts boiling or evaporation takes place when the vapor pressure of the liquid becomes equal to the external or atmospheric pressure. Now when the vapor pressure is less than the atmospheric pressure, the liquid boils at a higher temperature while when vapor pressure is more than the atmospheric temperature, the liquid starts boiling a lower temperature.

No water molecule is converted into gas when the atmospheric pressure is higher than vapour pressure.

No, water molecules will not become gas particles when the vapor pressure is lower than atmospheric pressure because of the higher pressure of surrounding environment on the water molecules. The water in liquid form is converted into gas form and evaporated when the vapour pressure is equal or higher than atmospheric pressure.

So if the vapour pressure is lower than the atmospheric pressure than the water molecules will not become gas particle so we can conclude that no water molecule is converted into gas when the atmospheric pressure is higher than vapour pressure.

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