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
∆H° for this reaction is 79.14 kJ/mol in the temperature range of 25 to 125°C. Given that the partial pressure of carbon dioxide in equilibrium with pure solid silver carbonate is 6.23 × 10−3 torr at 25°C, calculate the partial pressure of CO2 necessary to prevent decomposition ofAg2CO3 at 110°C. (Hint: Manipulate the equation in Exercise 79.)
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