The standard enthalpies of formation of , and are –285.8, –278.5 and –228.9 kJ/mol, respectively. Th — Thermodynamics and Thermochemistry Chemistry Question

Question

The standard enthalpies of formation of $\text{H}_2\text{O(l)}$, $\text{Li}^+\text{(aq)}$ and $\text{OH}^-\text{(aq)}$ are –285.8, –278.5 and –228.9 kJ/mol, respectively. The standard enthalpy change for the reaction is<br>$2\text{Li(s)} + 2\text{H}_2\text{O(l)} \to 2\text{Li}^+\text{(aq)} + 2\text{OH}^-\text{(aq)} + \text{H}_2\text{(g)}$