I. Based on phase diagrams, a substance can only exist as one phase for a given temperature and pressure. II. By examining phase diagrams, we can see that it is possible to make a liquid...

Extracted text: I. Based on phase diagrams, a substance can only exist as one phase for a given temperature and pressure. II. By examining phase diagrams, we can see that it is possible to make a liquid boil/evaporate by simply lowering the pressure at constant temperature. Statement I is TRUE, while Statement II is FALSE. Statement II is TRUE, while Statement I is FALSE. O Both statements are TRUE. Both statements are FALSE.