At 25℃, the dissociation reaction of Ozone into O₂ has 1055 (very large) Kc value, what does it mean?
Correct answer: B. Ozone is unstable at room temperature and is almost completely decomposed
- A. Ozone is almost completely Decomposed
- B. Ozone is unstable at room temperature and is almost completely decomposed
- C. Rate of backward reaction is faster
- D. Ozone is unstable at room temperature
Explanation
If the value of K is greater than 1, the products in the reaction are favored.If the value of K is less than 1, the reactants in the reaction are favored.In this case, the value is much greater than 1, which hugely favors the forward reaction of decomposition. Because the rate of decomposition is so high, ozone is also unstable at room temperature.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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