Chemical Reaction Engineering Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison. Stability Deposited Chemisorbed Selectivity Stability Deposited Chemisorbed Selectivity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion. Film Ash layer None of these Pore Film Ash layer None of these Pore ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction? Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance Gas film and pore surface diffusion resistances for products Ash resistance Gas film and pore surface diffusion resistances for reactants Surface phenomenon resistance Gas film and pore surface diffusion resistances for products ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst in a chemical reaction Decreases the activation energy Alters the reaction mechanism Increases the frequency of collisions of reacting species All of these Decreases the activation energy Alters the reaction mechanism Increases the frequency of collisions of reacting species All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Remains unchanged Decreases Increases Unpredictable from the data Remains unchanged Decreases Increases Unpredictable from the data ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The dispersion number of perfect mixed flow is > 150 ∞ < 2100 > 150 ∞ < 2100 ANSWER DOWNLOAD EXAMIANS APP
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