A method for determination of the second viriul coefficient of a pure gas is based on the Clapeyron equation and measurements of the latent heat of vaporization (Hfu, the molar volume of saturated liquid Vl, and the vapor pressure P sat. Determine B in cm3 mol-1 for methyl ethyl ketone at 75(C from the following data at this temperature:

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ΔΗ'' = 31,600 J mol.. ' v' = 96.49 cm3 mol-' In P/kPa 48.157543 5,622.7/T- 4.70504nT IT K