Chemical Reaction Engineering
In the reversible reaction of the type, A + B ⇋ AB, in general

Both forward and backward reactions will be exothermic
The combination reaction will be endothermic, while the dissociation reaction will be exothermic
Neither of the reactions will be en-dothermic
The combination reaction will be exothermic, while the dissociation reaction will be endothermic

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

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

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

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

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