Chemical Reaction Engineering For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of Chanelling Ideal plug flow Bypass Dead zone Chanelling Ideal plug flow Bypass Dead zone ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ⇋ 2NH₃. Increases Remains unchanged Decreases Unpredictable from the data Increases Remains unchanged Decreases 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) Independent of temperature None of these ∝ 1/CA ∝ CA Independent of temperature None of these ∝ 1/CA ∝ CA ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Space time equals the mean residence time For CSTR When the density of the reaction mixture is constant For large diameter tubular reactor For narrow diameter tubular reactor For CSTR When the density of the reaction mixture is constant For large diameter tubular reactor For narrow diameter tubular reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Brunaur, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates is not used to derive BET equation? Langmuir None of these The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process There is no dynamic equilibrium between successive layer Langmuir None of these The adsorbed layer may be polymolecular in thickness and the heat of adsorption in each layer (except the first one) is involved in each of the evaporation process There is no dynamic equilibrium between successive layer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reversible reactions, the product yield can not be increased by the application of high pressure? 2SO₂ + O₂ ⇋ 2SO₃ N + 3H₂ ⇋ 2NH₃ PCl3 + Cl₂ ⇋ PCl5 N₂ + O₂ ⇋ 2NO 2SO₂ + O₂ ⇋ 2SO₃ N + 3H₂ ⇋ 2NH₃ PCl3 + Cl₂ ⇋ PCl5 N₂ + O₂ ⇋ 2NO ANSWER DOWNLOAD EXAMIANS APP
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