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If wet silver carbonate is dried in a stream of hot air, the air must have a certain concentration level of
carbon dioxide to prevent silver carbonate from decomposing by the reaction
Ag2CO3 (s) Ag2O(s) + CO2(g)
∆ for this reaction is 79.14 kJ/mol in the temperature range of 25C to 125C. Given that the partial
pressure of CO2 in equilibrium with pure solid silver carbonate is 6.23 x 10-3 mm Hg at 25C, what is the
partial pressure of CO2 necessary to prevent the decomposition of Ag2CO3 at 110C?