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
2/3 kW
5/3 kW
4kW

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Chemical Reaction Engineering
A space time of 3 hours for a flow reactor means that

Conversion is cent per cent after three hours
Three reactor volumes of feed can be processed every hour
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

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