Cstr reactor mole balance equation: the reactor volume required to reach 80% conversion of a for the reaction a-> b + c, the reaction rate equation is ra -k1*ca, the inlet feed rate fao 10 gr mole/hour, the rate constant k, 0.15 liter/gr mole-hour, and the concentration of a in the feed is cao 2.0 gr moles/l. to solv problem only requires solution of an algebraic equation. 4. starting with the cstr mole balance equation,