Suppose the following system has reached equilibrium at a certain temperature: N2 O4 (g)→2NO2 (g) Adding N2 O4 to the system will:
Correct answer: A. Start forward reaction
- A. Start forward reaction
- B. Start reverse reaction
- C. Not disturb equilibrium
- D. Raise the temperature of system
Explanation
Adding a reactant (N2O4) will shift the equilibrium to the product side (forward reaction) to consume the added reactant.
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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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