Question 1
Consider the following equilibria:
2SO
3(g)
![](data:image/png;base64, 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)
2SO
2(g) + O
2(g)
K
c = 2.3 × 10
–7 2NO
3(g)
![](data:image/png;base64, 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)
2NO
2(g) + O
2(g) K
c = 1.4 × 10
–3Calculate the equilibrium constant for the reaction
SO
2(g) + NO
3(g)
![](data:image/png;base64, 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)
SO
3(g) + NO
2(g)
◦ 78
◦ 1.3 × 10
–2◦ 1.6 × 10
–4◦ 3.2 × 10
–10◦ 6.1 × 10
3Question 2
Consider the following reactions and their associated equilibrium constants:
A + 2B ![](data:image/png;base64, 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) C | K1 |
C ![](data:image/png;base64, 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) D + E | K2 |
For the reaction A + 2B
![](data:image/png;base64, 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)
D + E, having equilibrium constant K
c,
◦ K
c = K
1 + K
2◦ K
c = K
1/K
2◦ K
c = K
1 – K
2◦ K
c = (K
1)(K
2)
◦ K
c = K
2/K
1