2. For the following reaction, A+BC+D the rate law was found as: rA=kPAPB/(1+KCPC+KAPA)2 Suggest a mechanism on the basis of the above rate law. 3. The following reaction: AB+C, is carried out in a fluidized CSTR. The reaction is found as second order and the catalyst decay is first order in the present activity. Write down the mole balance equation, rate law and decay law