For the reaction in the gaseous phase: R$3->$A the rate data: CA$)$

$3$ Find the inverse of A in the reactor in the sense of volume

m$1$ when the feed consists of $30\%-$ A$,$ R

$30\%$ and $40\%-$ inert material, flow rate at the entrance to the reactor min$/$liter $180$ and liter$/$mmol $300=$CA