We’re being asked to determine the heat (q) released or enthalpy change by the reaction of 0.95 g S
The given reaction is:
2 S (s) + 3 O2(g) → 2 SO3(g); ΔH˚rxn = –790.0 kJ/mol
From the balanced equation, we can see that the given ΔH˚rxn (–790.0 kJ) corresponds to 2 moles of S.
Recall that at constant pressure, heat is equivalent to enthalpy.
The value of ΔH° for the reaction below is -790 kJ. The enthalpy change accompanying the reaction of 0.95 g of S is __________ kJ.
2 S (s) + 3 O2 (g) → 2 SO3 (g)