Question

what is vapour pressure? Define boiling pount in terms of vapour pressure.

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Answer 1

Vapour

: Vapour pressure is a measure of the tendency of a material to change into the gaseous or vapour state, and it increases with temperature. The temperature at which the vapour pressure at the surface of a liquid becomes equal to the pressure exerted by the surroundings is called the boiling point of the liquid.

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Boiling point

The boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it. The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere (760 torr). Microscopic view inside a bubble in boiling water.

Answer 2

Answer:

The pressure exerted by this gaseous vapour on the walls of the container is called vapour pressure. ... Eventually, the amount of gaseous vapour and the amount of liquid in the container reaches a state of equilibrium

The temperature at which the vapour pressure of a liquid equals the atmospheric pressure is known as boiling point. At boiling point, liquid changes into a vapour. ... Depending on the environmental pressure, the boiling point of a liquid varies.

Explanation:

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