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2. a) Identify the unit processes and operations involved in the fluid catalytic cracking system: Diagram of the fluid catalytic cracking process 2.b) The following empirical equation correlates the values of variables in a system in which solid particles are suspended in a flowing gas: DKgdpy=2+0.6(D)1/3(D)1/3(dpu)1/2 kg is a coefficient that expresses the rate at which a particular species transfers from the gas to the solid particles. Check the dimensional homogeneity of the above equation ( y is dimensionless quantity). 2.c) Classify the following systems (batch/semi-batch/continuous and steady or unsteady) i) baking of cookies. ii) Fermentation process is loaded with batch. It constantly produces carbon dioxide, which has to be removed continuously. iii) a sealed bottle of milk being heated. iv) A heated ball suddenly dropped in a cold water reservoir. Classify the process A) initially; B) after a long period of time elapsed