Chemical Reaction Engineering In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants) A A+N A-N N A A+N A-N N ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction Goes through a maximum along the length of the reactor Is maximum at the exit of the reactor Is maximum at the inlet of the reactor Goes through a minimum along the length of the reactor Goes through a maximum along the length of the reactor Is maximum at the exit of the reactor Is maximum at the inlet of the reactor Goes through a minimum along the length of the reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Increases Remains same Increases linearly Decreases Increases Remains same Increases linearly Decreases 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
Chemical Reaction Engineering For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min⁻¹ . What will be the conversion for a PFR with a space velocity of 0.2 min⁻¹? Assume that all the other operating conditions are the same for CSTR and PFR. 0.15 0.9 0.3 0.6 0.15 0.9 0.3 0.6 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance. Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer ANSWER DOWNLOAD EXAMIANS APP
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