$0\mathrm{.}341$ liter$/$s of a $50\%$ ozone$-50\%$ air mixture at $1\mathrm{.}5$atm and $93C$ passes through a plug flow reactor. Under these condition ozone decomposes by homogeneous reaction:

$2O_3-3O_2$

$-r_{\text{o}\text{z}\text{o}\text{n}\text{e}}=k{C}_{\text{o}\text{z}\text{o}\text{n}\text{e}}^2$

$k=0\mathrm{.}05\frac{L}{m}ol.s$

What size of reactor in liters is needed for $70\%$ decomposition of ozone?

Round your answer to $0$ decimal places.