what is vapour pressure ?
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the pressure of a vapour in contact with its liquid or solid form is vapour pressure
ojasvini:
how does it affect boiling
please tell
The normal boiling point is the temperature in which the vapour pressure of a liquid becomes equal to atmospheric pressure. If the intermolecular forces are small, the liquid has a high vapour pressure. Little heat energy will have to be added to separate the molecules, so the boiling point will be low.
Answered by
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Hi friend
Here is your answer -:
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☆ VAPOUR PRESSURE
The pressure exerted by vapour in equilibrium with the solid or liquid phase of the same substance. Also, the partial pressure of the substance in the atmosphere above the solid or the liquid.
☆ VAPOUR PRESSURE AFFECT BOILING BY-:
A liquid boils at a temperature at which its vapor pressure is equal to the pressure of the gas above it. The lower the pressure of a gas above a liquid, the lower the temperature at which the liquid will boil.
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Hope it helps :)
Here is your answer -:
__________________________
☆ VAPOUR PRESSURE
The pressure exerted by vapour in equilibrium with the solid or liquid phase of the same substance. Also, the partial pressure of the substance in the atmosphere above the solid or the liquid.
☆ VAPOUR PRESSURE AFFECT BOILING BY-:
A liquid boils at a temperature at which its vapor pressure is equal to the pressure of the gas above it. The lower the pressure of a gas above a liquid, the lower the temperature at which the liquid will boil.
__________________________
Hope it helps :)
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