Chemical Reaction Engineering A space time of 3 hours for a flow reactor means that The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours Three reactor volumes of feed can be processed every hour Conversion is cent per cent after three hours It takes three hours to dump the entire volume of the reactor with feed The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours Three reactor volumes of feed can be processed every hour Conversion is cent per cent after three hours It takes three hours to dump the entire volume of the reactor with feed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A CSTR is to be designed in which an exothermic liquid phase first order reaction of the type, A → R, is taking place. The reactor is to be provided with a jacket in which coolant is flowing. Following data is given: CA0= 5 kmole/m³ ; XA = 0.5; Feed temperature = reactor temperature = 40°C. Rate constant at 40°C = 1 min⁻¹ ; (ΔH) = - 40kJ/mole; ρ = 1000kg/m³ CP = 4 J/gm.°C ; q = 10⁻³ m³/min (ρ and CP are same for the reactant and product streams). The amount of heat to be removed is 4kW 5/3 kW 1kW 2/3 kW 4kW 5/3 kW 1kW 2/3 kW ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants) A+N A N A-N A+N A N A-N ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Slurry reactors are characterised by the Presence of two mobile phases Both A and B Lack of intraparticle diffusion resistance Neither A nor B Presence of two mobile phases Both A and B Lack of intraparticle diffusion resistance Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is > 1 1 < 1 > 1 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ? 3 1/9 1/3 1/2 3 1/9 1/3 1/2 ANSWER DOWNLOAD EXAMIANS APP
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