Question
- Which is largest in size Cu+, Cu2+ or Cu, and why?
- Which element in periodic table has highest I.E. (ionisation energy)?
- Which element is more metallic-Mg or Al and why?
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2K(s) + F2(g) → 2K+F-(s)
$\text{CO}_2\text{(g)}+\text{H}_2(\text{g})\overrightarrow{\ \ \ \ \ \ }\ \text{CO(g)}+\text{H}_2\text{O(g)}$
Given that the
$\Delta_\text{f}\text{H}^\circ\text{CO(g)}=-110.5\text{kJ mol}^{-1},$ $\Delta_\text{f}\text{H}^\circ\text{CO}_2\text{(g)}=-393.8\text{kJ mol}^{-1}$ and $\Delta_\text{f}\text{H}^\circ\text{H}_2\text{O(g)}=-241.8\text{kJ mol}^{-1}$ respectively.KAl(SO4)2 .12 H2O