Here's the question you clicked on:
RileyMitchum
"Using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) + H2O(g) -> CO2(g) + H2(g)" I am unsure about where to start on this. Do I use the formula deltaHrxn = (sum of the products deltaH) - (sum of the reactant deltaH)?
\[DeltaHrxn = (-393.5+0)-(-110.5+-241.8)\]