A(g) ⇌ A₂(g) in a sealed container at 298 K is monitored with a pressure sensor

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

Problem

A(g) ⇌ A₂(g) in a sealed container at 298 K is monitored with a pressure sensor. The pressure stops changing after 30 s. Suggest one experimental method (other than waiting longer) that could distinguish whether the system has actually reached equilibrium or is simply progressing too slowly to detect further change, and state what result would confirm that true equilibrium has been attained.

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