Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by External mass transfer None of these Reaction Diffusion within the pellet External mass transfer None of these Reaction Diffusion within the pellet ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The irreversible reaction, X → Y, is the special case of the reversible reaction, X ⇋ Y, in which the Fractional conversion of Equilibrium constant is infinite All of these Concentration of Fractional conversion of Equilibrium constant is infinite All of these Concentration of 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. 0.6 0.9 0.3 0.15 0.6 0.9 0.3 0.15 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pure A in gas phase enters a reactor 50% of this A is converted to B through the reaction, A 3B. Mole fraction of A in the exit stream is 43833 43835 43834 43832 43833 43835 43834 43832 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in temperature, the rate constant obeying Arhenious equation Can either increase or decrease ; depends on the frequency factor Decreases Decreases exponentially Increases Can either increase or decrease ; depends on the frequency factor Decreases Decreases exponentially Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Differential method for analysing the kinetic data is used For testing complicated mechanisms When rate expressions are very simple When the data are scattered None of these For testing complicated mechanisms When rate expressions are very simple When the data are scattered None of these ANSWER DOWNLOAD EXAMIANS APP
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