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

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

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Chemical Reaction Engineering
The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the

Value of threshold energy decreases
Increased temperature reduces the activation energy
Fraction of molecules having threshold energy increases
Collision frequency increases

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

Three reactor volumes of feed can be processed every hour
Conversion is cent per cent after three hours
The time required to process one reactor volume of feed (measured at specified conditions) is 3 hours
It takes three hours to dump the entire volume of the reactor with feed

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