Chemical Reaction Engineering Which of the following fixes the volume of a batch reactor for a particular conversion and production rate? None of these Operating conditions (e.g. pressure and temperature) Rate constant Density of mixture None of these Operating conditions (e.g. pressure and temperature) Rate constant Density of mixture ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Surface reaction between A in the gas phase and absorbed B Desorption of C Surface reaction between absorbed A and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between A in the gas phase and absorbed B Desorption of C Surface reaction between absorbed A and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of 44015 7 3 6 44015 7 3 6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reactions of high molecularity are rare, because Of requirement of very large concentration for such reactions Of very large activation energy of many bodies Of low probability of many body collisions Many body collisions are not favoured energetically Of requirement of very large concentration for such reactions Of very large activation energy of many bodies Of low probability of many body collisions Many body collisions are not favoured energetically ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) None of these Tan hT/tan T Tan T/T Tan hT/T None of these Tan hT/tan T Tan T/T Tan hT/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The exit age distribution of fluid leaving a vessel is used to know the Activation energies of a reaction Extent of non-ideal flow in the vessel Reaction mechanism None of these Activation energies of a reaction Extent of non-ideal flow in the vessel Reaction mechanism None of these ANSWER DOWNLOAD EXAMIANS APP
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