Question

Which of the following reactions would have an enthalpy change equal to ΔHfo?

Fe(s) + 3232Cl2(g) → FeCl3(s) C(graphite) + O2(g) → CO2(g)

Answer 1

The reaction that would have an enthalpy change equal to ΔHfo is Fe(s) + 3/2 Cl2(g) FeCl3(s).

Step-by-step explanation:

The reaction that would have an enthalpy change equal to ΔHfo is Fe(s) + 3/2 Cl2(g) → FeCl3(s). In this reaction, one mole of iron reacts with 3/2 moles of chlorine gas to produce one mole of FeCl3. The enthalpy change for this reaction is equal to the standard enthalpy of formation of FeCl3.