The following data were collected for the reversible reaction

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

Problem

The following data were collected for the reversible reaction X⇌YX\rightleftharpoons Y. Time (s): 0 10 20 30 40 Rate_forward (M⋅s−1M\cdot\text{s}^{-1}): 0.28 0.18 0.10 0.06 0.05 Rate_reverse (M⋅s−1M\cdot\text{s}^{-1}): 0.00 0.04 0.08 0.10 0.05 Determine the earliest time at which the system is at equilibrium.

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