Chemical Reaction Engineering If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst Porosity is of less importance Internal surface area is utilised efficiently Porosity is very important None of these Porosity is of less importance Internal surface area is utilised efficiently Porosity is very important None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = k + kg keff = (k+ kg)/2 1/keff = 1/k + 1/kg keff = (kkg)1/2 keff = k + kg 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 -0.5 1.5 0.5 1 -0.5 1.5 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a continuous flow stirred tank reactor, the composition of the exit stream Is different than that in the reactor None of these Is same as that in the reactor Depends upon the flow rate of inlet stream Is different than that in the reactor None of these Is same as that in the reactor Depends upon the flow rate of inlet stream ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is 0.425 0.5 0.875 Data insufficient to calculate 0.425 0.5 0.875 Data insufficient to calculate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In case of __________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds. Series Auto catalytic Catalytic Parallel Series Auto catalytic Catalytic Parallel ANSWER DOWNLOAD EXAMIANS APP
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