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The $\Delta H_f^o$ for $C{O_2}(g),\,CO(g)$ and ${H_2}O(g)$ are $-393.5, -110.5$ and $-241.8\,kJ\,mol^{-1}$ respectively. The standard enthalpy change (in $kJ$) for the reaction $C{O_2}(g) + {H_2}(g) \to $ $CO(g) + {H_2}O(g)$ is

• A
  $524.1$
• ✓
  $41.2$
• C
  $-262.5$
• D
  $-41.2$