Solve the $Ca$ and $Cb$ over time for the reaction below with Euler backward and Euler modified methods. $($This is not a VBA question$).$ Please attach your handwritten notes on rearranging the equations and an Excel sheet to solve it$.$

$AB$

$dC\frac{a}{d}t=-r{1}^{**}Ca+r{2}^{**}Cb$

$dC\frac{b}{d}t=r{1}^{**}Ca-r{2}^{**}Cb$

$r1$ and $r2$ are rate constants with $1$ and $0\mathrm{.}5mi{n}^{-1}.$ At $t=0,Ca=1\frac{g}{m}ol$ and $Cb=0\frac{g}{m}ol.$ Between $t=0$ and $t=1,$ use increments of $0\mathrm{.}05.$ Attach File