Chemistry / Chem 1407 · Atom · ~20 seconds
Equilibrium Vapor Pressure
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A liquid's equilibrium vapor pressure is its vapor's pressure at dynamic equilibrium, and it falls as intermolecular forces strengthen.
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Diethyl ether, held mostly by weak dispersion forces, has a far higher vapor pressure than hydrogen-bonded water.
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Vapor pressure depends on temperature and identity, never on container size or exposed surface area — those change only how fast equilibrium is reached.