vapour pressure

noun

physics the pressure exerted by a vapour. The saturated vapour pressure is that exerted by a vapour in equilibrium with its solid or liquid phase at a particular temperature

When the components are completely immiscible, the vapour pressure of the one is not influenced by the presence of the other.

In general, when the substance to be distilled has a vapour pressure of only 10 mm.

This is the curve of vapour pressure, or the vaporization curve of water.

It is possible that at some temperature the vapour pressure curve of a lower hydrate may cut that of a higher hydrate.

Thus, at any given temperature, the vapour pressure of the system and the concentration of the components have a definite value.

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