3. The Pure chlorobenzene is contained in a flask attached to an open-end mercury manometer. When the flask contents are at 58.3C, the vapor pressure is measured at 60 mm Hg, whereas when the flask contents are at 110C, the vapor pressure is measured at 400 mm Hg. a) Extrapolate the data using the ClausiusClapeyron equation to estimate the vapor pressure of chlorobenzene at 130C. b) Air saturated with chlorobenzene at 130C and 101.3 kPa is cooled to 58.3C at constant pressure. Estimate the percentage of the chlorobenzene originally in the vapor that condenses. [3 marks]