Consider second order kinetics $\left(r_{c}=-k C^{2}\right)$ under steady state condition. The ratio of volume of a complete mixed reactor (CMR) to that of a plug flow reactor (PFR) to achieve $90 \%$ reduction in the concentration is ________.
Inlet concentrations in both the reactors are same.
- $10.0$
- $1.0$
- $0.1$
- $2.3$
