Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by External mass transfer None of these Reaction Diffusion within the pellet External mass transfer None of these Reaction Diffusion within the pellet ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A back mix reactor is Suitable for gas phase reactions Same as plug flow reactor (PFR) Same as ideal stirred tank reactor Ideal at very low conversion Suitable for gas phase reactions Same as plug flow reactor (PFR) Same as ideal stirred tank reactor Ideal at very low conversion 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 series A P.F. reactor in parallel More CSTR's in series More CSTR's in parallel A P.F. reactor in series A P.F. reactor in parallel More CSTR's in series More CSTR's in parallel ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison. Deposited Selectivity Stability Chemisorbed Deposited Selectivity Stability Chemisorbed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An irreversible aqueous phase reaction, A + B → P, is carried out in an adiabatic mixed flow reactor. A feed containing 4kmole/m³ of each A and B enters the reactor at 8m³ /hr. If the temperature of the exit stream is never to exceed 390 K, what is the maximum inlet feed temperature allowed?(Data: Heat of reaction = - 50 kJ/mole, Density of the reacting mixture = 1000kg/m³, Specific heat of reacting mixture = 2kJ/kg.K)The above data can be assumed to be independent of temperature and composition. 490 390 190 290 490 390 190 290 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The irreversible reaction is a special case of reversible reaction, if the Reactant concentration at equilibrium condition is zero Equilibrium constant is 1 Conversion of the reactant at equilibrium condition is zero All of these Reactant concentration at equilibrium condition is zero Equilibrium constant is 1 Conversion of the reactant at equilibrium condition is zero All of these ANSWER DOWNLOAD EXAMIANS APP
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