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in States of Matter - Gas and Liquid by (48.1k points)

The boiling point of liquid changes on increasing the pressure. Why?

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The boiling point of a liquid is the temperature at which the vapour pressure of the liquid becomes equal to the atmospheric pressure pressure. Also the vapour pressure of a liquid is a function of the temperature. As the temperature increases, the vapour pressure increases. Now if we increase the external pressure, a higher temperature would be required so that the vapour pressure equal to that increased external pressure and hence, the boiling point of the liquid increases.

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