Automobiles require coolant liquid to cool down combustion chambers in the engine. The following reaction occurs when gasoline is burned in combustion chambers in automobiles. K = 5 x 10 31 at 25°C, N2(2) + O2() = 2NO9) K = 0.0013 at 2100°C 1. Apply the above chemical equilibrium equation to write an equilibrium constant expression. [A,

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Automobiles require coolant liquid to cool down combustion chambers in the engine. The following
reaction occurs when gasoline is burned in combustion chambers in automobiles.
N2(9) + O29) = 2NO)
K = 5 x 10 31 at 25°C,
K = 0.0013 at 2100°C
1. Apply the above chemical equilibrium equation to write an equilibrium constant expression. [A, 1]
2. Apply your understanding of equilibrium constants to explain why adding a coolant to cool down
the engine and the combustion chamber where this reaction occurs is beneficial to the
environment. Compare the magnitude of the K value at each temperature and its meaning. [A, 2]
Transcribed Image Text:Automobiles require coolant liquid to cool down combustion chambers in the engine. The following reaction occurs when gasoline is burned in combustion chambers in automobiles. N2(9) + O29) = 2NO) K = 5 x 10 31 at 25°C, K = 0.0013 at 2100°C 1. Apply the above chemical equilibrium equation to write an equilibrium constant expression. [A, 1] 2. Apply your understanding of equilibrium constants to explain why adding a coolant to cool down the engine and the combustion chamber where this reaction occurs is beneficial to the environment. Compare the magnitude of the K value at each temperature and its meaning. [A, 2]
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