Question

vapour pressure of a liquid is equal to the atmospheric pressure at its boiling point or freezing point? ​

Answer 1

Answer:

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Answer 2

Answer:

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).

Explanation:

The vapor pressure of a liquid lowers the amount of pressure exerted on the liquid by the atmosphere. ... The gas, as bubbles in the liquid, will rise to the surface and be released into the atmosphere. Note: Boiling Point. Boiling occurs when the vapor pressure of the liquid is equal to the atmospheric pressure.At the freezing point, the vapor pressure of both the solid and liquid form of a compound must be equal. The freezing point of a substance is the temperature at which the solid and liquid forms are in equilibrium.