How are vapour pressure and boiling point related?

Vapour pressure is defined as the pressure exerted by the gas-phase molecules over a liquid. It is a strong function of temperature—the higher the temperature, the higher the vapour pressure. The boiling point of a liquid is defined as that temperature when the vapour pressure of the liquid is equal to the total pressure of gas over the liquid. The normal boiling point of a liquid is when the vapour pressure of the liquid equals to one atmosphere.

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