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Calculate the heat of reaction of the fo...

Calculate the heat of reaction of the following reaction :
`CO_(2)(g) + H_(2)(g) rarr CO(g) + H_(2)O(g)`
Given that the `Delta_(f)H^(@)` of `CO(g) = -110.5 kJ, Delta_(f)H^(@)` of `CO_(2)(g) = -393.8 kJ`, `Delta_(f)H^(@)` of `H_(2)O(g) = -241.8 kJ` respectively

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Verified by Experts

The required equation is `CO_(2)(g) + H_(2)(g) rarr CO(g) + H_(2)O(g)`
`Delta H = Sigma Delta H_(f"(products)") - Sigma Delta H_("(reactants)")`
`= Delta H_(f)^(@)CO_((g)) + Delta H_(f)^(@)H_(2)O_((g)) - Delta H_(f)^(@)CO_(2(g)) - Delta H_(f)^(@)H_(2(g))`
`= -110.5 kJ - 241.8 kJ - (-398.3 kJ) - 0 = 352.3 kJ + 393.8 kJ = 41.5 kJ`.
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