$(35\%)$ In order to study the kinetics of a reaction of interest, five different university student teams collaborated and carried out experiments using their lab reactors at disposal to them. It so happened that they all used different size CSTR reactors under experimental conditions which were different from one another. For the liquid phase reaction whose rate of reaction can be expressed as: $-r_A=k{C}_A^n,$ determine the order of the reaction and the rate constant at $25C.$

Data for problem No$.4$

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