Classify the following as either batch or continuous processes and indicate whether each is a steady-state or an unsteady-state process. If the last digit of your student number is odd, consider only item (a), if it is even, consider only item (b). a. A surge tank is used when a liquid is coming from one part of a process at a variable rate, and we want to provide a reservoir of that liquid to feed another part of the process. Thus, a surge tank continuously (but at varying flow rates) receives liquid from an incoming stream and also loses that same liquid continuously (also possibly at changing flow rates) in an outgoing stream. The volume in the tank also changes with time. b. A company produces latex paint base by mixing the ingredients for the paint. All flow rates are held constant to maintain the proper ratio of ingredients. Working around the clock, the company makes approximately 800 gallons of paint every 24 hours.