Question

A space velocity of 7 hr^-1 means ___________

(a) 7 reactor volumes of feed is fed into the reactor per hour

(b) Feed is fed at 7 hrs interval

(c) Takes 7 hours to treat one reactor volume of feed

(d) Reaction time is 7 hours

I have been asked this question in an online interview.

The origin of the question is Design Equations for Flow Reactors topic in division Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering

Answer 1

Right answer is (a) 7 reactor volumes of feed is fed into the reactor per hour

Explanation: Number of reactor volumes of feed that can be treated in unit time is called space velocity.