Write the balanced equation for the decomposition of hydrogen peroxide into water and oxygen gas.
a. 2H2O2 → 2H2O + O2
Use Hess’ Law to calculate the net energy released. Then calculate the energy in kJ/ mol—this will be the theoretical value:
H2 + ½ O2 → H2O ΔH = -286 kJ/ mol
H2 + O2 → H2O2 ΔH = -191 kJ/ mol
H2O2 + H2 + ½ O2 → H2 + O2 + H2O H= -95 kJ/mol
H2O2 → ½ O2 + H2O H= -95 kJ/mol
I am not sure what the answer to the second part is. I think that it is either -95 kJ/mol or -190 kJ/mol. I just want to make sure which one it is.
