Chemical Reaction Engineering Promoter. Initiates a chemical reaction and is a catalyst by itself Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals Atlers the position of equilibrium in a reversible reaction All of these Initiates a chemical reaction and is a catalyst by itself Increases the number of active centres by increasing the unevenness of catalyst surface and by creating discontinuities in the crystals Atlers the position of equilibrium in a reversible reaction All of these 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 4kW 2/3 kW 1kW 5/3 kW 4kW 2/3 kW ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering With increase in the order of reaction (for all positive reaction orders), the ratio of the volume of mixed reactor to the volume of plug flow reactor (for identical feed composition, flow rate and conversion) Remains same Increases linearly Decreases Increases Remains same Increases linearly Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Chemical kinetics can predict the __________ of a chemical reaction. Neither A nor B Rate Feasibility Both A & B Neither A nor B Rate Feasibility Both A & B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium? 0.152 0.338 0.253 0.637 0.152 0.338 0.253 0.637 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the most suitable for very high pressure gas phase reaction? Fluidised bed reactor Tubular flow reactor Stirred tank reactor Batch reactor Fluidised bed reactor Tubular flow reactor Stirred tank reactor Batch reactor ANSWER DOWNLOAD EXAMIANS APP
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