AP Chemistry
6.8 Enthalpy of Formation
The standard molar enthalpy of formation, \(\Delta H_f^\circ\), is defined as the enthalpy change that occurs when \(1\text{ mol}\) of a pure compound is formed from its constituent elements in their standard states at \(298\text{ K}\) and \(1\text{ atm}\). Which of the following balanced chemical equations represents the process corresponding to \(\Delta H_f^\circ\) for liquid ethanol, \(\text{C}_2\text{H}_5\text{OH}(l)\)?
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