Chemical Reaction Engineering In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂. Decrease Increase No change Unpredictable from the data Decrease Increase No change Unpredictable from the data ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant) None of these ∝ 1/CA ∝ CA Independent of temperature None of these ∝ 1/CA ∝ CA Independent of temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii) (i) endothermic (ii) exothermic (i) endothermic (ii) enodthermic (i) exothermic (ii) endothermic (i) exothermic (ii) exothermic (i) endothermic (ii) exothermic (i) endothermic (ii) enodthermic (i) exothermic (ii) endothermic (i) exothermic (ii) exothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Unpredictable from the data Remains unchanged Decreases Increases Unpredictable from the data Remains unchanged Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From collison theory, the reaction rate constant is proportional to Tm.exp(- E/RT) √T Exp(- E/2RT) Exp(- E/RT) Tm.exp(- E/RT) √T Exp(- E/2RT) Exp(- E/RT) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor? Very high temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction Very low temperature should be used throughout the reaction None of these Very high temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction Very low temperature should be used throughout the reaction None of these ANSWER DOWNLOAD EXAMIANS APP
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