Chemical Reaction Engineering A trickle bed reactor is the one, which 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) Processes three reactants at different flow rates Processes three reactants with same flow rate ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by 1 - e-t/τ E-t/τ E-t/τ/T 1 - (e-t/τ/T) 1 - e-t/τ E-t/τ E-t/τ/T 1 - (e-t/τ/T) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction? Gas film and pore surface diffusion resistances for products Surface phenomenon resistance Gas film and pore surface diffusion resistances for reactants Ash resistance Gas film and pore surface diffusion resistances for products Surface phenomenon resistance Gas film and pore surface diffusion resistances for reactants Ash resistance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Organic catalysts differ from the inorganic catalyst in the sense that the former is Proteinous in nature Active at cryogenic temperatures only Active at very high temperature only Prohibitively costly Proteinous in nature Active at cryogenic temperatures only Active at very high temperature only Prohibitively costly ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The decomposition of A into B is represented by the exothermic reaction, A ⇋ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction. At low P and high T At high P and high T At high P and low T At low P and low T At low P and high T At high P and high T At high P and low T At low P and low T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature)) 500 1000 600 400 500 1000 600 400 ANSWER DOWNLOAD EXAMIANS APP
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