Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? Pore diffusion Decay reactions All of these Form of surface attack by poison Pore diffusion Decay reactions All of these Form of surface attack by poison 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. 190 490 290 390 190 490 290 390 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Remains same Increases linearly Decreases Increases Remains same Increases linearly Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a Batch reactor is preferred over a single CSTR for high yield Single CSTR is the most suitable Tubular reactor is preferred over a single CSTR for high yield Both A and B Batch reactor is preferred over a single CSTR for high yield Single CSTR is the most suitable Tubular reactor is preferred over a single CSTR for high yield Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fluid flow in a real packed bed can be approximated as __________ model. Mixed flow Dispersion Tank in series Plug flow Mixed flow Dispersion Tank in series Plug flow ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The value of steric factor 'P' in the equation k = PZeE/RT usually ranges from 0.1 to 0.9 None of these L.0 to 10⁻⁸ L.l.to 10² 0.1 to 0.9 None of these L.0 to 10⁻⁸ L.l.to 10² ANSWER DOWNLOAD EXAMIANS APP
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