Chemistry — Standard Enthalpy Definitions
The key standard enthalpy changes.
Rendering…
Make it your own.
\Delta H_f^\circ:\ \text{formation from elements}
\Delta H_c^\circ:\ \text{complete combustion}
\Delta H_{neut}:\ \text{acid + base} \rightarrow 1\ \text{mol water}
\Delta H_{at}:\ 1\ \text{mol gaseous atoms}