## Question

###### Use the data in Appendix $\mathrm{B}$ to find standard enthalpies of reaction in kilojoules for the following processes: $$ \begin{array}{l}{\text { (a) } \mathrm{C}(s)+\mathrm{CO}_{2}(g) \longrightarrow 2 \mathrm{CO}(g)} \\ {\text { (b) } 2 \mathrm{H}_{2} \mathrm{O}_{2}(a q) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)+\mathrm{O}_{2}(g)} \\ {\text { (c) } \mathrm{Fe}_{2} \mathrm{O}_{3}(s)+3 \mathrm{CO}(g) \longrightarrow 2 \mathrm{Fe}(s)+3 \mathrm{CO}_{2}(g)}\end{array} $$

Use the data in Appendix $\mathrm{B}$ to find standard enthalpies of reaction in kilojoules for the following processes: $$ \begin{array}{l}{\text { (a) } \mathrm{C}(s)+\mathrm{CO}_{2}(g) \longrightarrow 2 \mathrm{CO}(g)} \\ {\text { (b) } 2 \mathrm{H}_{2} \mathrm{O}_{2}(a q) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)+\mathrm{O}_{2}(g)} \\ {\text { (c) } \mathrm{Fe}_{2} \mathrm{O}_{3}(s)+3 \mathrm{CO}(g) \longrightarrow 2 \mathrm{Fe}(s)+3 \mathrm{CO}_{2}(g)}\end{array} $$

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