Question

If CA0 = 8 and CM = 1, the value of N is ____

(a) 4

(b) 1

(c) 2

(d) 3

I had been asked this question in unit test.

I'm obligated to ask this question of Microbial Fermentation topic in chapter Bioreactors, Enzyme and Microbial Fermentation of Chemical Reaction Engineering

Answer 1

Correct choice is (d) 3

The best I can explain: N = (1+\(\frac{C_{A0}}{C_M}\))^0.5 = (1+\(\frac{8}{1}\))^0.5 = 3.