31. In addition, for the phase change from water to ice, add 333 kiloJoules per kilogram. 32. A similar concept applies to liquid gas phase changes . 33. Some chalcogenide materials experience thermally driven amorphous-to-crystalline phase changes . 34. Another application of a phase change to cooling is the " self-refrigerating " beverage can. 35. Phase change material is used to cool the water for the chilled beams and panels.36. A different analysis is needed for phase change 37. The most important example is phase change memory. 38. Most rewritable and many write once optical disks already use phase change material to store information. 39. The reflected light ( about 4 % of the total ) also has no phase change . 40. As phase change materials perform best in small containers, therefore they are usually divided in cells.
