At elevated temperatures, potassium chlorate decomposes to yield potassium chloride and oxygen according to the equation: 2KClO3(s) → 2KCl(s) + 3O2(g). When the rate of decomposition of KClO3(s) is 4.3x10^-3 M/s, the rate of formation of O2(g) is 1.2E-3 M/s.