Chemical Reaction Engineering A catalyst in a chemical reaction Decreases the activation energy All of these Alters the reaction mechanism Increases the frequency of collisions of reacting species Decreases the activation energy All of these Alters the reaction mechanism Increases the frequency of collisions of reacting species ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A space velocity of 5 hr⁻¹ means that Cent per cent conversion can be achieved in at least 5 hours A fixed conversion of a given batch of feed takes 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour After every 5 hours, reactor is being filled with the feed Cent per cent conversion can be achieved in at least 5 hours A fixed conversion of a given batch of feed takes 5 hours Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour After every 5 hours, reactor is being filled with the feed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a zero order reaction, the concentration of product increases with the Decrease in total pressure Increase in initial concentration Total pressure Increase of reaction time Decrease in total pressure Increase in initial concentration Total pressure Increase of reaction time ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of decomposition of a liquid 'A' by irreversible first order reaction is 12 minutes. The time required for 75% conversion of 'A' is __________ minutes. 18 12 6 24 18 12 6 24 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is 3 0 2 1 3 0 2 1 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. Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C Chemical reaction Diffusion through ash layer Film diffusion Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS