Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) Independent of temperature ∝ CA None of these ∝ 1/CA Independent of temperature ∝ CA None of these ∝ 1/CA 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 Desorption of C Surface reaction between absorbed A and absorbed B Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Desorption of C Surface reaction between absorbed A and absorbed B Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Design of heterogeous catalytic reactor involves consideration of __________ steps. Both A & B Only physical Only chemical Neither A nor B Both A & B Only physical Only chemical Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Promoter is added to the catalyst to improve its Surface area None of these Sensitivity Porosity Surface area None of these Sensitivity Porosity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The performance of a cascade of CSTR's can be improved by adding A P.F. reactor in parallel More CSTR's in series A P.F. reactor in series More CSTR's in parallel A P.F. reactor in parallel More CSTR's in series A P.F. reactor in series More CSTR's in parallel ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Catalyst carriers Inhibit catalyst poisoning Increase the activity of a catalyst Have very high selectivity Provide large surface area with a small amount of active material Inhibit catalyst poisoning Increase the activity of a catalyst Have very high selectivity Provide large surface area with a small amount of active material ANSWER DOWNLOAD EXAMIANS APP
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