Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at High temperature in a PFR Low temperature in a PFR High temperature in a CSTR Low temperature in a CSTR High temperature in a PFR Low temperature in a PFR High temperature in a CSTR Low temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Shift conversion reaction Converts CO to CO₂ with steam Is non-catalytic Is highly exothermic Converts N₂ and H₂ into NH₃ Converts CO to CO₂ with steam Is non-catalytic Is highly exothermic Converts N₂ and H₂ into NH₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the hydrodealkylation of toluene to benzene, the following reactions occur:C₇H₈ + H₂ → C₆H₆ + CH₄2C₆H₆ ⇋ C₁₂H₁₀ + H₂Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is 0.152 0.16 0.136 0.144 0.152 0.16 0.136 0.144 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The value of steric factor 'P' in the equation k = PZeE/RT usually ranges from 0.1 to 0.9 None of these L.l.to 10² L.0 to 10⁻⁸ 0.1 to 0.9 None of these L.l.to 10² L.0 to 10⁻⁸ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The optimum performance for reactors operating in parallel is obtained when the feed stream is distributed in such a way, that the Space time for parallel lines is different None of these Larger reactors have more space time compared to smaller ones Space time for each parallel line is same Space time for parallel lines is different None of these Larger reactors have more space time compared to smaller ones Space time for each parallel line is same 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)) 400 600 500 1000 400 600 500 1000 ANSWER DOWNLOAD EXAMIANS APP
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