Chemical Reaction Engineering Helium-mercury method can be used to determine the __________ of the catalyst particle. Solid density Porosity All of these Pore volume Solid density Porosity All of these Pore volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Batch Tubular flow Fixed bed Stirred tank Batch Tubular flow Fixed bed Stirred tank ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus is used to determine the Porosity of the catalyst bed Specific surface of a porous catalyst Pore size distribution Pore diameter Porosity of the catalyst bed Specific surface of a porous catalyst Pore size distribution Pore diameter 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 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 None of these There is no dynamic equilibrium between successive layer 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Exothermic reactions are best carried out in A CSTR CSTR in series A plug flow reactor followed by CSTR CSTR followed by a plug flow reactor A CSTR CSTR in series A plug flow reactor followed by CSTR CSTR followed by a plug flow reactor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS