Vapour pressure formulae

1.	Vapour pressure formulae
Answer» In chemistry, vapor PRESSURE is the pressure that is exerted on the WALLS of a sealed container when a substance in it evaporates (CONVERTS to a GAS). To find the vapor pressure at a given temperature, use the Clausius-Clapeyron EQUATION: ln(P1/P2) = (ΔHvap/R)((1/T2) - (1/T1)). I think it's hipl U :-))

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