A student examines a diagram for the reaction A ⇌ B (1:1 stoichiometry)

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

A student examines a diagram for the reaction A ⇌ B (1:1 stoichiometry). The box shows 10 A particles and 10 B particles. The student concludes that the reaction mixture is at equilibrium because the numbers of A and B are equal. Explain the misconception in the student’s reasoning.

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