Calculate ?Hrxn for the reaction: Use the following

Chapter 6, Problem 80E

(choose chapter or problem)

Calculate \(\Delta H_{\mathrm{rxn}}\) for the reaction:

\(\mathrm{CaO}(s)+\mathrm{CO}_2(g) \longrightarrow \mathrm{CaCO}_3(s)\)

Use the following reactions and given \(\Delta H\) 's.

\(\begin{array}{r} \mathrm{Ca}(s)+\mathrm{CO}_2(g)+1 / 2 \mathrm{O}_2(g) \longrightarrow \mathrm{CaCO}_3(s) \\ \Delta H=-812.8 \mathrm{~kJ} \end{array}\)

\(2 \mathrm{Ca}(s)+\mathrm{O}_2(g) \longrightarrow 2 \mathrm{CaO}(s) \quad \Delta H=-1269.8 \mathrm{~kJ}\)

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