Chemical Reaction Engineering The vessel dispersion number (D/μL) for plug flow is 750 500 ∞ 750 500 ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor suffers from following disadvantage. All of these Poor product quality control High shutdown time requirement for emptying, cleaning and refilling High labour and handling cost All of these Poor product quality control High shutdown time requirement for emptying, cleaning and refilling High labour and handling cost 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)) 600 1000 400 500 600 1000 400 500 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for Slow reactions in catalyst of large pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of small pore diameter 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? None of these Very high temperature should be used throughout the reaction Very low temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction None of these Very high temperature should be used throughout the reaction Very low temperature should be used throughout the reaction Temperature should be high in the beginning and decreased towards the end of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Threshold energy in a reaction is equal to the Activation energy Sum of A & B Normal energy of reactants Neither A nor B Activation energy Sum of A & B Normal energy of reactants Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS