Chemical Reaction Engineering Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison. Chemisorbed Deposited Selectivity Stability Chemisorbed Deposited Selectivity Stability ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes. 12 8 4 16 12 8 4 16 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = (kkg)1/2 keff = k + kg 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = (kkg)1/2 keff = k + kg ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A backmix reactor Is same as plug-flow reactor Is most suitable for gas phase reaction Employs mixing in axial direction only Is same as ideal stirred tank reactor Is same as plug-flow reactor Is most suitable for gas phase reaction Employs mixing in axial direction only Is same as ideal stirred tank reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as ND = n/2 ND = n + 1 ND = (n + 1)/2 None of these ND = n/2 ND = n + 1 ND = (n + 1)/2 None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If ΔG (free energy change) for a chemical reaction is very large and negative, then the reaction is Very much feasible Unpredictable as ΔG is no measure of feasibility of a reaction Just feasible Not feasible Very much feasible Unpredictable as ΔG is no measure of feasibility of a reaction Just feasible Not feasible ANSWER DOWNLOAD EXAMIANS APP
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