The pressure of a vapour in contact with its liquid or solid form.
〔化〕蒸气压
Example sentencesExamples
This is the temperature at which the vapor pressure of the liquid is the same as that of the atmosphere.
If some of the vapor is removed by pumping it away then more of the liquid will evaporate to take its place and maintain the vapor pressure.
For a given external pressure, there is a temperature at which the vapor pressure of the liquid is equal to the external pressure.
Since the boiling point of a substance is the temperature at which its vapor pressure is equal to the atmospheric pressure, a substance whose boiling point is lower than another's is said to be more volatile.
At the temperature where the vapor pressure of the liquid is equal to the atmospheric pressure, the liquid is said to be at its normal boiling point.