In a reactor Carbon dioxide is absorbed in NaOH. The CO$2$ partial pressure ranges from $2\mathrm{.}5$ bar at the reaction inlet and $(0\mathrm{.}025)$ at the outlet. The liquid phase has a roughly constant composition of $0\mathrm{.}96$ M NaOH. Find out the absorption rate at reactor inlet. Data: kL $=0\mathrm{.}025$ cm$/$s$,$ kG $=2\mathrm{.}510-5$ mol.cm$-2$s$1$bar$-1,$ H $=56\mathrm{.}2$ bar l mol$-1,$ DCO$2=1\mathrm{.}610-5$ cm$2$ s$-1,$ DOH$/$DCO$2=1\mathrm{.}7,$ k$2=$ COH$0=7000$ s$-1,0\mathrm{.}400$ CO$0=0\mathrm{.}40$