Question

Space time is defined as ____

(a) Time required to process unit volume of feed

(b) Time required for the reaction to occur

(c) Time required to produce unit volume of product

(d) Time to process the entire volume of feed entering

I had been asked this question in my homework.

Enquiry is from Space Time and Space Velocity topic in chapter Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering

Answer 1

Right option is (a) Time required to process unit volume of feed

To elaborate: Space time is the time spent by a unit volume of reactants inside the reactor. It is the performance measure for a flow reactor.