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 Ag 2 CO 3 ( s ) ⇌ Ag 2 O ( s ) + CO 2 ( g ) ∆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 CO 2 necessary to prevent decomposition ofAg 2 CO 3 at 110°C. (Hint: Manipulate the equation in Exercise 79.)
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 Ag 2 CO 3 ( s ) ⇌ Ag 2 O ( s ) + CO 2 ( g ) ∆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 CO 2 necessary to prevent decomposition ofAg 2 CO 3 at 110°C. (Hint: Manipulate the equation in Exercise 79.)
Solution Summary: The author explains that thermodynamics is associated with heat, temperature, and its relation with energy and work. It helps predict whether a process will take place or not.
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
Ag
2
CO
3
(
s
)
⇌
Ag
2
O
(
s
)
+
CO
2
(
g
)
∆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.)
Q2: Group these solvents into either protic solvents or aprotic solvents.
Acetonitrile (CH3CN), H₂O, Acetic acid (CH3COOH), Acetone (CH3COCH3),
CH3CH2OH, DMSO (CH3SOCH3), DMF (HCON(CH3)2), CH3OH
Suppose the rate of evaporation in a hot, dry region is 1.76 meters per year, and the seawater there has a salinity of 35 ‰. Assuming a 93% yield, how much salt (NaCl) can be harvested each year from 1 km2 of solar evaporation ponds that use this seawater as a source?
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Chapter 16 Solutions
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