已知：$F{e}_2{O}_3\left(s\right)+\frac{3}{2}C\left(s\right)=\frac{3}{2}C{O}_2\left(g\right)+2Fe\left(s\right)$  ΔΗ=234.1kJ·mol^-1
$C\left(s\right)+O_2\left(g\right)=C{O}_2\left(g\right)$                  ΔΗ=-393.5 kJ·mol^-1
则$2Fe\left(s\right)+O_2\left(g\right)=F{e}_2{O}_3\left(s\right)$ 的ΔΗ是（）

A．	-824.4 kJ·mol ^-1	B．	-627.6 kJ·mol ^-1
C．	-744.7 kJ·mol ^-1	D．	-169.4 kJ·mol ^-1