$($including reaction rate equation, I need a couple of data for the following reactions including

a$.$ Equilibrium constant k

b$.$ Entalphy of reaction

c$.$ Type of reaction $($exothermic and endothermic$)$

Temperature $=810$ C

Pressure $=36\mathrm{.}5$ bar

Reactions

CH$4($g$)+$ H$2$O$($g$)<->$ CO$($g$)+3$H$2($g$).....($A$)$

CO$($g$)+$ H$2$O$($g$)<->$ CO$2($g$)+$ H$2($g$).....($B$)$

$2$CO$($g$)<->$ C$($s$)+$ CO$2($g$).....($C$)$

CH$4($g$)<->$ C$($s$)+2$H$2($g$).....($D$)$