Chemical Reaction Engineering A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes. 16 12 8 4 16 12 8 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a reversible reaction, a catalyst increases the rate of forward reaction And the backward reaction equally Only And decreases that of the backward reaction To a greater extent than that of the backward reaction And the backward reaction equally Only And decreases that of the backward reaction To a greater extent than that of the backward reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor. Fixed bed reactor followed by a fluidised Fluidised bed reactor followed by a fixed Fluidised Fixed Fixed bed reactor followed by a fluidised Fluidised bed reactor followed by a fixed Fluidised Fixed 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 1kW 5/3 kW 2/3 kW 4kW 1kW 5/3 kW 2/3 kW 4kW ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The reason why a catalyst increases the rate of reaction is that, it None of these Decreases the energy barrier for reaction Decreases the molecular collision diameter Increases the activation energy None of these Decreases the energy barrier for reaction Decreases the molecular collision diameter Increases the activation energy 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 small pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter Slow reactions in catalyst of small pore diameter Fast reaction in catalyst of large pore diameter Fast reactions in catalyst of small pore diameter Slow reactions in catalyst of large pore diameter ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS