III O ADVANCED MATERIAL Labeling a typical simple phase diagram B pressure (atm) E D F G H 1 temperature (K) A OB If a sample of pure X is to be a mixture of liquid and gas, which point marks the lowest possible temperature and pressure of the sample? OE OD OF OH OG Which line must the temperature and pressure have crossed if a gaseous sample of X is observed to condense? OD OF OH G OB OD Which is the gas one-phase region