Forward and reverse rates (M·s⁻¹) for the equilibrium E ⇌ F were recorded every 20 s…
CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
Forward and reverse rates (M·s⁻¹) for the equilibrium E ⇌ F were recorded every 20 s from 160 s to 220 s and are shown below.
Time (s) | Rate_fwd | Rate_rev
160 | 5.2×10−4 | 4.7×10−4
180 | 5.0×10−4 | 4.9×10−4
200 | 4.9×10−4 | 5.0×10−4
220 | 4.8×10−4 | 5.0×10−4
Using the data from 160 s to 220 s, calculate the average forward rate and the average reverse rate over this interval, then state whether the system had effectively reached equilibrium by 220 s (yes or no).