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Given:(i) \(\mathrm{C}\) (graphite) \(+\mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{CO}_2(\mathrm{~g}) ; \Delta_{\mathrm{r}} \mathrm{H}^{\mathrm{o}}=\mathrm{x} \mathrm{kJ} \mathrm{mol}^{-1}\)(ii) \(\mathrm{C}\) (graphite) \(+\frac{1}{2} \mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{CO}(\mathrm{g}) ; \Delta_{\mathrm{r}} \mathrm{H}^{\mathrm{o}}=\mathrm{y} \mathrm{kJ} \mathrm{mol}^{-1}\)(iii) \(\mathrm{CO}(\mathrm{g})+\frac{1}{2} \mathrm{O}_2(\mathrm{~g}) \rightarrow \mathrm{CO}_2(\mathrm{~g}) ; \Delta_{\mathrm{r}} \mathrm{H}^{\mathrm{o}}=\mathrm{zkJ} \mathrm{mol}^{-1}\)
Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct? 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live