Which oxide of nitrogen is most stable if Kc values for their decomposition are as follows:
Correct answer: A. NO3 Kc =10
- A. NO3 Kc =10
- B. NO Kc= 1030
- C. N2O5 Kc = 1034
- D. N2O Kc = 1023
Explanation
Smaller is the equilbrium constant (KC), slower is the rate of reaction which implies that the reactant is more stable. In the given question Kc=10 is the smallest equrilibrium constant. So, NO3 is the most stable oxide of nitrogen.
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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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