Chemical Reaction Engineering The half life period of a first order reaction is given by (where, K = rate constant. ) 2.5 K 1.5 K 0.693/K 6.93 K 2.5 K 1.5 K 0.693/K 6.93 K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second. 3 0.5 2 1 3 0.5 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. Diffusion through ash layer Film diffusion Chemical reaction Either A, B or C Diffusion through ash layer Film diffusion Chemical reaction Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The unit of frequency factor in Arhenious equation is Same as that of rate constant Dimensionless Same as that of activation energy None of these Same as that of rate constant Dimensionless Same as that of activation energy None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus is used to determine the Pore size distribution Pore diameter Specific surface of a porous catalyst Porosity of the catalyst bed Pore size distribution Pore diameter Specific surface of a porous catalyst Porosity of the catalyst bed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When an exothermic reversible reaction is conducted adiabatically, the rate of reaction Passes through a minimum Continuously decreases Passes through a maximum Continuously increases Passes through a minimum Continuously decreases Passes through a maximum Continuously increases ANSWER DOWNLOAD EXAMIANS APP
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