Chemical Reaction Engineering A catalyst promoter Acts as a catalyst support Improves the activity of a catalyst Itself has very high activity All of these Acts as a catalyst support Improves the activity of a catalyst Itself has very high activity All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If 'n' is the order of reaction, then unit of rate constant is (time)-1 (concentration)n - 1 (time)n - 1 (concentration) 1/(time)(concentration)n - 1 None of these (time)-1 (concentration)n - 1 (time)n - 1 (concentration) 1/(time)(concentration)n - 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors. Both conversion as well as concentration are same None of these Conversion in both will be the same but concentrations will be different Both the conversion as well as concentrations will be different Both conversion as well as concentration are same None of these Conversion in both will be the same but concentrations will be different Both the conversion as well as concentrations will be different ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which one is the rate controlling step in a solid-gas non-catalytic reaction occurring at very high temperature? Ash layer diffusion Chemical reaction Pore diffusion Film diffusion Ash layer diffusion Chemical reaction Pore diffusion Film diffusion 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. Either A, B or C Diffusion through ash layer Film diffusion Chemical reaction Either A, B or C Diffusion through ash layer Film diffusion Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time. Remain unchanged Increase Increase exponentially Decrease Remain unchanged Increase Increase exponentially Decrease ANSWER DOWNLOAD EXAMIANS APP
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