Need help understanding this question. So as far as I understand, the flow rates

Question

Need help understanding this question.
So as far as I understand, the flow rates and composition of feed streams to each reactor are identical, they both have the same volume, no cell maintenance effects, no product formation, no mass transfer limitations. But ammonium conversions are not the same. The concentration of the ammonium coming in is the same, at 4.8g/l.
For part (a) it says that the substrate conversion for the first reactor is 70% and I found that the end concentration would be 1.44g/l but there's not enough information to figure out the conversion of reactor 2 right?

Explanation / Answer

[Moles of A reacted] = [moles of A fed] [moles of A reacted/ moles of A fed]

NA = No . X

N0 = 4.8g/L (number of moles fed or initial substrate concentration).

X = moles of A reacted/ moles of A fed

moles A fed = 1.44g/L, obtained for bioreactor 1.

NA = (1.44 ) (4.8/1.44) = 4.8g/L

At 70% of conversion of Ammonium in reactor 1 is 1.44g/L, then the conversion factor for reactor 2 is 4.8g/L

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