Chemical Reaction Engineering Helium-mercury method can be used to determine the __________ of the catalyst particle. Pore volume Solid density Porosity All of these Pore volume Solid density Porosity All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A backmix reactor Is same as ideal stirred tank reactor Employs mixing in axial direction only Is same as plug-flow reactor Is most suitable for gas phase reaction Is same as ideal stirred tank reactor Employs mixing in axial direction only Is same as plug-flow reactor Is most suitable for gas phase reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half-life period for a first order reaction is __________ the initial concentration of the reactant. Independent of None of these Inversely proportional to Directly proportional to Independent of None of these Inversely proportional to Directly proportional to ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance. Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if A catalyst is added None of these The temperature is increased An inert gas is pumped keeping the temperature constant A catalyst is added None of these The temperature is increased An inert gas is pumped keeping the temperature constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Bulk diffusion in catalyst pore __________ with increase in pressure. Remains unchanged Decreases Increases exponentially Increases Remains unchanged Decreases Increases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
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