Chemical Reaction Engineering The residence time distribution of an ideal CSTR is 1/τ exp (-t/τ) 1/τ (-t/τ) Τ exp (-t/τ) Exp(-t/τ) 1/τ exp (-t/τ) 1/τ (-t/τ) Τ exp (-t/τ) Exp(-t/τ) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Exothermic reactions are best carried out in CSTR in series A plug flow reactor followed by CSTR A CSTR CSTR followed by a plug flow reactor CSTR in series A plug flow reactor followed by CSTR A CSTR CSTR followed by a plug flow reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor suffers from following disadvantage. All of these High labour and handling cost High shutdown time requirement for emptying, cleaning and refilling Poor product quality control All of these High labour and handling cost High shutdown time requirement for emptying, cleaning and refilling Poor product quality control ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is 1 1.5 0.5 -0.5 1 1.5 0.5 -0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Batch process is preferred over continuous process, when the Product yields and quality can not be achieved in continuous process, because of long residence time Same equipment can not be used for several processes of the same nature Sales demand of product is not steady All of these Product yields and quality can not be achieved in continuous process, because of long residence time Same equipment can not be used for several processes of the same nature Sales demand of product is not steady 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? There is no dynamic equilibrium between successive layer Langmuir None of these 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 Langmuir None of these 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 ANSWER DOWNLOAD EXAMIANS APP
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