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

5/3 kW
2/3 kW
1kW
4kW

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Chemical Reaction Engineering
For the same residence time, which one will give the maximum conversion?

Single tubular flow reactor (v = 5 litres)
Two stirred tank (each of 2.5 litres) in series
Single stirred tank (v = 5 litres)
Stirred tank followed by tubular flow reactor (each of 2.5 litres)

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Chemical Reaction Engineering
A batch reactor is suitable for

Achieving cent percent conversion of reactants into products
Obtaining uniform polymerisation products in highly exothermic reactions
Liquid phase reactions
Large scale gaseous phase reactions

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