Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Increases Decreases Remains same Increases linearly Increases Decreases Remains same Increases linearly ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following factors control the deactivation of a porous catalyst pellet? All of these Form of surface attack by poison Pore diffusion Decay reactions All of these Form of surface attack by poison Pore diffusion Decay reactions ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The percent conversion of ethanol in the reactor is 100 2.5 95 97.5 100 2.5 95 97.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is used for calcination of limestone and dolomite in industrial practice? Fluidised bed reactor Moving bed reactor Fixed bed reactor None of these Fluidised bed reactor Moving bed reactor Fixed bed reactor None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) ΔHA + ΔHR E E + ΔHA E + ΔHA - ΔHR ΔHA + ΔHR E E + ΔHA E + ΔHA - ΔHR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the dispersion number for a plug flow reactor? 1 ? -1 1 ? -1 ANSWER DOWNLOAD EXAMIANS APP
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