The rates of the forward and reverse reactions for a gaseous system at 350 K were…

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

Problem

The rates of the forward and reverse reactions for a gaseous system at 350 K were measured at regular intervals. Time (s): 0 20 40 60 80 100 Forward rate (mol·L⁻¹·s⁻¹): 0.80 0.54 0.37 0.25 0.18 0.18 Reverse rate (mol·L⁻¹·s⁻¹): 0.00 0.26 0.37 0.46 0.54 0.54 Determine, to the nearest 10 s, the time at which this system first reaches equilibrium.

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