Chemical Reaction Engineering Fluidised bed reactor is characterised by Absence of continuous catalyst regeneration facility Very small pressure drop Uniformity of temperature Comparatively smaller equipment Absence of continuous catalyst regeneration facility Very small pressure drop Uniformity of temperature Comparatively smaller equipment ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Sometimes, batch process is preferred over continuous process, when the product Quality & yield can not be achieved in continuous processes, because of long residence time Sales demand is fluctuating Both A & B Neither A nor B Quality & yield can not be achieved in continuous processes, because of long residence time Sales demand is fluctuating Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The equilibrium constant of a catalytic chemical reaction __________ due to the presence of a catalyst. Decreases Increases Unpredictable from the data Remains unaffected Decreases Increases Unpredictable from the data Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? Form of surface attack by poison Decay reactions Pore diffusion All of these Form of surface attack by poison Decay reactions Pore diffusion All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation? Langmuir The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process There is no dynamic equilibrium between successive layer None of these Langmuir The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process There is no dynamic equilibrium between successive layer None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A second order reaction of the form A + B → C is called a pseudo-first order reaction, when CA0 = CB0 CB0 ≥ CB0 CB0 > CA0 CA0 > CB0 CA0 = CB0 CB0 ≥ CB0 CB0 > CA0 CA0 > CB0 ANSWER DOWNLOAD EXAMIANS APP
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