7.4 Hydrogen peroxide decomposes to produce water and oxygen. The equation is:
2H, O2(g) → 2H, O(g) + O2(g)
Using the following values, calculate the heat
change for the reaction and say whether it is
exothermic or endothermic.
Bond energies:
H—H = 436 kJ/mol
00 = 144 kJ/mol
0=0 = 498 kJ/mol
0-H = 464 kJ/mol