To produce nitric acid by using ostwald process. the reaction entering the packed$($platinum catalyst$)$ bed reactor is $4$NH$3+5$O$2--->4$NO$+6$H$2$O and the side reaction is NH$3+3/4$O$2--->1/2$N$2+3/2$H$2.$ The pressure P$1=8$ bar and T$1=446$C and P$2=8$bar and T$2=907$C the yield is $($XA$)=\%96.$ find the degree of the reaction$($n$)$ and the reaction rate $(-$ra$)$