Equilibrium Pressures of Oxygen over Ag[sub 2]O-Ag at Various Temperatures

Although earlier investigators showed the dissociation of Ag 2 O to be reversible and equilibrium points had been obtained, there was a range from 191° to 203°that had not been studied. This region has now been studied. From all the data available and heat capacity data Δ H ° 298 , Δ S ° 298 , and Δ G ° 298 have been calculated to be 14.69 kcal, 31.92 kcal, and 5.17 kcal per mol O 2 respectively, for the dissociation reaction 2 Ag 2 O → 4 Ag + O 2 .