Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single tubular flow reactor (v = 5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Reactions with high activation energy are Always irreversible Very temperature sensitive Always reversible Temperature insensitive Always irreversible Very temperature sensitive Always reversible Temperature insensitive ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Batch process is preferred over continuous process, when the Sales demand of product is not steady Product yields and quality can not be achieved in continuous process, because of long residence time All of these Same equipment can not be used for several processes of the same nature Sales demand of product is not steady Product yields and quality can not be achieved in continuous process, because of long residence time All of these Same equipment can not be used for several processes of the same nature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space time equals the mean residence time When the density of the reaction mixture is constant For large diameter tubular reactor For CSTR For narrow diameter tubular reactor When the density of the reaction mixture is constant For large diameter tubular reactor For CSTR For narrow diameter tubular reactor 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 Kc/(1 + TS) reaction between absorbed A and B in the gas phase Desorption of C Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Desorption of C Surface reaction between A in the gas phase and absorbed B Surface reaction between absorbed A and absorbed B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A trickle bed reactor is the one, which Processes three reactants at different flow rates Has altogether three streams either entering or leaving Processes three reactants with same flow rate Employs all the three phases (i.e.. .solid, liquid and gas) Processes three reactants at different flow rates Has altogether three streams either entering or leaving Processes three reactants with same flow rate Employs all the three phases (i.e.. .solid, liquid and gas) ANSWER DOWNLOAD EXAMIANS APP
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