Vapor pressure

Layer 2 — Chemistryin the phases-and-states subtree

The equilibrium pressure exerted by the vapour of a substance above its condensed (liquid or solid) phase at a given temperature. Temperature-dependent via the Clausius-Clapeyron equation: d(ln p)/d(1/T) = −ΔHᵥₐₚ/R. A liquid boils when its…

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