Enthalpy o vapourisation

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Temperatur-dependency o the heats o vapourisation for watter, methanol, benzene, an acetone.

The enthalpy o vapourisation, (seembol ∆Hvap) an aa kent as the (latent) heat o vapourisation or heat o evaporation, is the amoont o energy (enthalpy) that maun be addit tae the liquid substance, tae transform a quantity o that substance intae a gas.