Chemical Reaction Engineering A trickle bed reactor is the one, which Processes three reactants at different flow rates Processes three reactants with same flow rate Has altogether three streams either entering or leaving Employs all the three phases (i.e.. .solid, liquid and gas) Processes three reactants at different flow rates Processes three reactants with same flow rate Has altogether three streams either entering or leaving Employs all the three phases (i.e.. .solid, liquid and gas) ANSWER DOWNLOAD EXAMIANS APP
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 Reaction None of these External mass transfer Diffusion within the pellet Reaction None of these External mass transfer Diffusion within the pellet ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Desorption of C Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Desorption of C Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? Decay reactions Pore diffusion Form of surface attack by poison All of these Decay reactions Pore diffusion Form of surface attack by poison All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Study of chemical kinetics is the easiest in the case of __________ reactions. Irreversible Surface Reversible Side Irreversible Surface Reversible Side ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a theory of homogeneous reaction? Chain reaction theory Radiation hypothesis Collision theory and activated complex theory None of these Chain reaction theory Radiation hypothesis Collision theory and activated complex theory None of these ANSWER DOWNLOAD EXAMIANS APP
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