Question

The $\Delta_f H^0$ for CO₂(g) CO(g) and H₂O(g) are –393.5, –110.5 and –241.8 kJ/mol respectively, the standard enthalpy change (in kJ) for the reaction $CO_2(g) + H_2 (g) \rightarrow CO(g) + H_2O(g)$ is :
(a) 524.1
(b) 41.2
(c) – 262.5
(d) – 41.2

Answer 1

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