Answer the following three questions. For each, illustrate the process on a p-7 phase diagram similar to that shown in Fig. 3.5. (2 pts. per part) a. Why does popcorn pop? b. A plastic milk jug filled with water and stored within a freezer ruptures. Why? c. You notice that a slab of dry ice seems to disappear overtime. What happens to it? Why doesn't it melt?Liquid * Vapor Liquid Critical point Melting Vaporization, condensation Pressure Solid Sublimation Triple point Vapor Temperature Fig. 3.5 Phase diagram for water (not to scale)