The equilibrium of this reaction would not be affected by an increase in pressure:
Correct answer: B. N2 + 02 ----> 2NO
- A. 2SO2 + 02--->2SO3
- B. N2 + 02 ----> 2NO
- C. 2NO + Cl ---› 2NOCI
- D. PCl5 → PCl3 + Cl2
- E. CO + 3H2 ---> CH4 + H20
Explanation
The correct answer is N₂ + O₂ → 2NO, because an increase in pressure doesn't affect the equilibrium since the number of gas molecules remains the same on both sides.
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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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